Clove Oil (Laung Tel) — Complete Guide to Benefits, Uses, DIY Recipes & Safety (2026)

By OotyMade · Nilgiris Essential Oils · Updated April 2026

Every Indian household has reached for a clove during a midnight toothache. A single clove bud pressed against a throbbing tooth — the intense, numbing warmth that spreads through the gum within minutes. This is not superstition or placebo. It is pharmacology that dentists have formally validated for over 150 years.

Clove oil is the most pharmacologically well-characterised essential oil in traditional Indian medicine. Its primary compound, eugenol — present at 70–90% concentration — is used in clinical dentistry to this day, as the basis of zinc oxide eugenol (ZOE) temporary filling material, dental cements, and impression pastes. A 2006 randomised controlled trial found clove oil gel as effective as benzocaine gel — a pharmaceutical topical anaesthetic — for dental pain relief. A 2025 systematic review across 21 dental pain studies identified eugenol as demonstrating the strongest analgesic properties of all phytotherapeutic agents evaluated.

This is clove oil — Laung Ka Tel (Hindi) / Kirambu Ennai (Tamil) — the essential oil that bridges 2,000 years of South Asian home medicine and the modern dental clinic.

⚠️ SAFETY FIRST — READ BEFORE USE

🔴 FOR EXTERNAL USE ONLY Clove essential oil is for topical application and aromatherapy only. While small amounts of eugenol from food (whole cloves in cooking) are safe, concentrated clove essential oil is not meant for ingestion. High doses of eugenol are hepatotoxic — causing liver damage. The NCBI LiverTox database documents that overdose of clove oil/eugenol causes acute liver injury, seizures, and in severe cases coma. Always spit out — never swallow — when using clove oil for oral applications.

🔴 NEVER APPLY UNDILUTED TO GUM TISSUE This is the most critical practical safety rule for clove oil.

Pure clove essential oil applied directly to soft gum tissue causes chemical burns and tissue necrosis — permanent damage to the delicate mucosa. This is not an unlikely risk; it happens to people who apply undiluted clove oil thinking "more is better." Eugenol at full concentration is cytotoxic — it kills the very cells it touches if applied undiluted.

The correct oral application protocol:

• Always dilute in a food-safe carrier oil (olive oil or coconut oil) at a ratio of 1 drop clove oil to 5–10 drops carrier
• Apply only to the tooth (enamel, dentine surface) — avoid gum contact as much as possible
• Cotton bud application is the safest method — dip, shake off excess, apply precisely to tooth
• Use for a maximum of 15–20 minutes per application
• Maximum 3 applications per day for emergency pain relief only

🔴 CHILDREN — TEETHING AND GENERAL USE Never apply clove oil to the gums of teething infants or young children. This is documented to cause tissue damage and has led to poisoning cases where children swallowed the oil. The "rub on baby's gums for teething" advice that circulates on Indian parenting groups is dangerous — clove oil's hepatotoxic properties make it particularly unsafe for children's small bodies.

For children over 6 years: highly diluted clove oil (1 drop in 1 tablespoon carrier) may be used as a brief spot treatment on a toothache — applied with a cotton bud to the tooth only, not swallowed. Maximum 1–2 uses. Always seek dental treatment, not repeated self-treatment with clove oil, for children's tooth pain.

🔴 PREGNANCY AND BREASTFEEDING Eugenol has uterotonic properties (can stimulate uterine contractions). Avoid therapeutic clove oil application during pregnancy. Small food quantities of cloves are generally considered safe; concentrated essential oil is not. Consult your obstetrician.

🔴 BLOOD THINNING MEDICATIONS Eugenol inhibits platelet aggregation (the clotting mechanism). People taking warfarin, aspirin, or other anticoagulant medications should consult their doctor before using clove oil therapeutically, as it may enhance the blood-thinning effect.

🔴 ALWAYS DILUTE FOR SKIN Undiluted clove oil on skin causes burning and blistering. Always dilute to 1% or less for facial skin (approximately 3 drops per 30ml carrier oil). For body application: maximum 2% (approximately 12 drops per 30ml carrier oil).

🔴 PATCH TEST Apply a small amount of properly diluted clove oil to the inner forearm. Wait 24 hours. Some individuals develop eugenol sensitivity — a documented contact allergen.

🔴 CONSULT A DENTIST — CLOVE OIL IS FIRST AID, NOT DENTAL TREATMENT This point deserves emphasis: clove oil provides temporary symptomatic relief for dental pain. It does not treat the underlying cause — cavity, cracked tooth, abscess, gum disease. Using clove oil to manage tooth pain without seeking dental care allows the underlying problem to worsen, potentially leading to infection, abscess, and tooth loss. Every toothache managed with clove oil at home should be followed by a dental appointment.

What Is Clove Oil? India's 2,000-Year Medical Heritage

Cloves (Syzygium aromaticum, family Myrtaceae) are the dried flower buds of a tropical evergreen tree native to the Maluku Islands (Moluccas) of Indonesia — historically called the Spice Islands precisely because of their clove production. Cloves reached India through ancient maritime trade routes, and by the time of the Charaka Samhita (1st–2nd century CE), Lavanga (लवंग) was already established as a key drug in the Ayurvedic pharmacopoeia — used for toothache, digestive complaints, respiratory conditions, and as a general stimulant.

The Latin name aromaticum means "aromatic" — the characteristically intense, warm-spicy fragrance of cloves comes almost entirely from eugenol, which comprises 70–90% of the essential oil.

India is currently the world's second-largest clove producer (after Indonesia), with production concentrated in Kerala, Karnataka, and Tamil Nadu — the Western Ghats coastal belt adjacent to the Nilgiris. This South Indian proximity means OotyMade's clove oil is sourced from the same geographic region as its teas and several of its other essential oils — a genuine single-origin South Indian supply chain rather than globally assembled.

The dental heritage: Clove oil in dentistry is not just a folk remedy — it is pharmacology. Dentists began formally using zinc oxide eugenol (ZOE) as a temporary filling material in the 1870s. ZOE is still in routine use today in root canals and as a temporary cement. When your dentist places a temporary filling, the analgesic-anaesthetic component is almost always eugenol. The "ancient Indian grandmother's toothache remedy" and the "dentist's temporary filling" contain the same active compound.

Chemical Composition of Clove Oil

Eugenol's dominance (70–90%) makes clove oil uniquely concentrated compared to most essential oils — it is essentially a delivery system for a single highly potent compound. This explains both clove oil's remarkable efficacy and its strong safety profile requirements: the active compound is present at such high concentrations that errors in dilution have immediate consequences.

The Clinical Mechanism — How Eugenol Works

Local Anaesthetic — Multiple Simultaneous Mechanisms

Eugenol produces dental anaesthesia through at least three independent pathways:

1. Sodium channel blockade: Eugenol blocks voltage-gated sodium channels in sensory neurons — the same mechanism as pharmaceutical local anaesthetics (lidocaine, novocaine). By preventing sodium influx, it stops the nerve from generating or transmitting pain action potentials. This is the mechanism underlying its comparison with benzocaine in the 2006 RCT.

2. TRPV1 desensitisation: Eugenol activates and then desensitises the TRPV1 heat receptor — the same mechanism as capsaicin and camphor. After initial activation (the warming sensation you feel when clove touches tissue), the receptor is transiently silenced, reducing pain signal transmission.

3. Prostaglandin inhibition: Eugenol inhibits prostaglandin biosynthesis — the same COX inhibition mechanism as ibuprofen and aspirin. This addresses the inflammatory component of tooth pain, not just the nerve signal.

Three independent analgesic mechanisms operating simultaneously explains why eugenol is so consistently effective for dental pain — and why a 2025 systematic review across 21 dental pain studies ranked eugenol as the top phytotherapeutic analgesic agent.

Antimicrobial Mechanism

Eugenol disrupts bacterial cell membranes through a non-specific lipophilic mechanism — it partitions into the bacterial membrane lipid bilayer, increasing membrane permeability and disrupting the proton gradient that powers bacterial metabolism. This non-specific mechanism means bacteria cannot easily develop resistance through genetic mutation (unlike targeted antibiotic mechanisms).

Clove oil has demonstrated antimicrobial activity against Streptococcus mutans (primary cavity-causing bacteria), Porphyromonas gingivalis (primary gum disease pathogen), Enterococcus faecalis (root canal infection bacteria), and multiple Candida species (oral fungal infections).

8 Evidence-Based Benefits of Clove Oil

1. Emergency Dental Pain Relief — The Strongest Evidence

The benchmark study: Alqareer A, Alyahya A, Andersson L. (2006) The effect of clove and benzocaine versus placebo as topical anesthetics. Journal of Dentistry.

Design: RCT, 73 adult patients. Clove oil gel vs benzocaine gel vs placebo for dental pain before needle insertion. VAS pain scores at baseline, before needle, and post-needle.

Results: Clove oil gel produced equivalent pain relief to benzocaine gel. Both were significantly superior to placebo. No significant difference between clove and benzocaine.

What this means: For emergency dental pain relief at home, properly applied diluted clove oil provides pharmaceutical-grade topical anaesthesia. This is the evidence basis for what Indian families have known empirically for generations.

Honest limitation: Clove oil provides temporary relief (30–90 minutes per application). It does not treat the tooth. Always seek dental care for any toothache.

2. Dental Antimicrobial — Gum Disease and Cavity Prevention

Eugenol's antibacterial activity against Streptococcus mutans and P. gingivalis has been documented in multiple laboratory studies. A 2018 study (Dental Research Journal) found clove and cinnamon oils inhibited the growth of common oral bacteria as effectively as erythromycin (a pharmaceutical antibiotic used in dentistry).

Clove oil's antimicrobial action on oral bacteria supports:

• Reducing cavity-causing bacterial load when used as a mouthwash
• Supporting gum health by reducing P. gingivalis (the primary pathogen in periodontal disease)
• Freshening breath by killing the bacteria responsible for sulphur-compound halitosis

3. Antifungal — Oral Thrush and Skin Infections

Beta-caryophyllene and eugenol together produce antifungal activity against Candida albicans — the organism responsible for oral thrush (commonly seen in infants, immunocompromised individuals, and after antibiotic courses). Laboratory studies confirm clove oil among the most effective essential oils against Candida species.

For skin fungal infections (ringworm, athlete's foot, nail fungus): diluted clove oil at 1–2% applied twice daily provides antifungal coverage through the same membrane disruption mechanism.

4. Anti-Inflammatory and Antioxidant

Beta-caryophyllene is a CB2 receptor agonist — it activates the same cannabinoid receptor pathway as CBD, producing anti-inflammatory effects without psychoactive effects. This makes clove oil one of the most potent anti-inflammatory essential oils available, working through a pathway distinct from most other oils in the OotyMade range.

Clove ranks among the highest antioxidant values measured in any food or spice — with ORAC (Oxygen Radical Absorbance Capacity) values exceeding most fruits, vegetables, and other spices including turmeric. Daily dietary use of cloves (in cooking, tea, masala chai) contributes significantly to total antioxidant intake.

5. Acne and Antibacterial Skin Care

Eugenol's bactericidal activity against S. aureus and Propionibacterium acnes (the primary acne bacteria) makes clove oil effective for severe, cystic acne where other antibacterial oils have been insufficient. The anti-inflammatory beta-caryophyllene component simultaneously reduces the redness and swelling of active acne lesions.

Critical caveat: Clove oil at full concentration burns skin immediately. For facial acne use: 1 drop in 1 teaspoon carrier oil (approximately 1% dilution). Apply only to individual active spots — not across the whole face — with a cotton bud. Leave 10–15 minutes; rinse off. Once daily maximum.

Clove oil is a spot treatment for severe individual pimples — not a daily facial oil. For general acne management, tea tree oil at 5% in jojoba oil is the better daily protocol; clove oil is the escalated spot treatment for persistent cystic spots.

6. Scalp Health and Hair Care

Eugenol's antimicrobial and anti-inflammatory properties address scalp conditions at their root cause:

• Dandruff: antifungal against Malassezia species driving seborrhoeic dandruff
• Scalp infections: bactericidal against common scalp pathogens
• Circulation: the counter-irritant vasodilation effect increases scalp blood flow, supporting hair follicle health

However — clove oil must be used at very low concentrations for scalp application (2–3 drops maximum per 30ml carrier oil). Higher concentrations irritate the scalp severely.

7. Insect Repellent and Household Antifungal

Eugenol is a potent insect repellent — studied as an organic pesticide and insect deterrent. Diffusing clove oil kills airborne mould spores (antifungal fumigation) — particularly relevant for India's monsoon season when mould growth in humid homes is a persistent problem.

For monsoon mould prevention: diffuse clove + lemongrass + eucalyptus oil blend in damp rooms. The combination addresses both mould spores and mosquitoes simultaneously.

8. Digestive Support — The Traditional Use

Cloves in Indian cooking serve a functional purpose — eugenol relaxes the smooth muscle of the GI tract (antispasmodic), reduces fermentation by killing gut bacteria that produce gas, and stimulates digestive enzyme secretion. The Ayurvedic tradition of adding cloves to biryani, pulao, and masala chai is both flavour and medicine in one.

Clove oil for direct digestive therapeutic use (not cooking) is more complex — large amounts are hepatotoxic. The correct approach is the food-based one: using whole cloves generously in cooking and spiced teas rather than concentrated essential oil internally.

5 DIY Recipes Using Nilgiris Clove Oil

Recipe 1 — Emergency Toothache Relief Application

The correct, safe version of the traditional home remedy.

Ingredients:

• 1 drop clove essential oil
• 5–8 drops of olive oil or coconut oil (food-grade carrier — important for oral applications)
• Cotton ball or cotton bud

Method:

1. Combine clove oil and carrier oil in a small dish. Mix.
2. Dip a cotton bud into the blend. Shake off any excess — too much oil increases gum contact risk.
3. Apply the cotton bud precisely to the tooth surface, pressing gently against the painful tooth.
4. Avoid gum contact as much as possible — bite gently if needed to hold the cotton bud in place.
5. Hold for 10–15 minutes. Remove.
6. Spit out any saliva that accumulated — do not swallow.
7. Repeat maximum 3 times per day while awaiting dental care.

When you will feel relief: The numbing effect begins within 2–5 minutes of application. The local anaesthetic mechanism from eugenol's sodium channel blockade creates a spreading numbness around the tooth. Full relief typically lasts 30–90 minutes.

Do not: Apply undiluted clove oil to gums. Swallow. Use more than 3 times daily. Use as a substitute for dental treatment — visit your dentist.

Recipe 2 — Natural Antibacterial Mouthwash

For daily oral hygiene, bad breath, and gum health maintenance.

Ingredients:

• 200ml warm water (boiled and cooled)
• 2 drops clove essential oil
• 1 drop peppermint oil (additional antibacterial + fresh breath component)
• 1 drop tea tree oil (terpinen-4-ol antimicrobial)
• 1 teaspoon vegetable glycerin or coconut oil (emulsifier — helps oils mix with water)

Method: Add oils to glycerin. Mix well. Add water. Shake vigorously before each use (oils separate immediately on standing).

Use: Swish 1–2 tablespoons vigorously through teeth for 30–60 seconds. Spit — do not swallow. Use once or twice daily after brushing. Store in a capped glass jar; use within 1 week.

The three-oil oral hygiene rationale: Clove (eugenol) for S. mutans and P. gingivalis — the cavity and gum disease bacteria. Peppermint (menthol) for breath freshening and additional antibacterial coverage. Tea tree (terpinen-4-ol) for broad-spectrum antimicrobial coverage and MRSA-active protection. Together: a comprehensive daily oral health rinse addressing the three primary sources of oral disease.

Recipe 3 — Cystic Acne Emergency Spot Treatment

For persistent, painful cystic spots unresponsive to tea tree oil alone.

Ingredients:

• 1 teaspoon jojoba oil (non-comedogenic carrier — essential for facial use)
• 1 drop clove essential oil (= approximately 1% concentration)
• 1 drop tea tree oil

Method: Combine in a small dish.

Application: Using a clean cotton bud, apply a tiny amount only to the individual cystic spot. Do not apply to surrounding skin. Leave for 10 minutes maximum — rinse off with cool water. Once daily only. Maximum 3 consecutive days.

Why this is more potent than tea tree oil alone: Eugenol's sodium channel-blocking action also affects sensory nerve endings in inflamed skin, reducing the pain and tenderness of cystic acne alongside the antibacterial effect. Beta-caryophyllene's CB2-mediated anti-inflammatory action reduces the deep inflammatory redness specific to cystic acne. Tea tree's terpinen-4-ol adds the biofilm-penetrating antibacterial coverage. Together: the most comprehensive natural antibacterial-anti-inflammatory spot treatment available.

Warning: If you feel burning after application, rinse immediately with carrier oil (not water — carrier oil removes clove oil from skin more effectively than water) then wash with a gentle cleanser. The 1% dilution should not burn; if it does, reduce to 0.5% next time.

Recipe 4 — Scalp Stimulating and Antidandruff Oil

Ingredients:

• 50ml coconut oil
• 4 drops clove essential oil (antifungal; scalp circulation)
• 8 drops rosemary oil (scalp circulation; DHT inhibition; hair growth)
• 6 drops tea tree oil (primary antifungal for dandruff)

Method: Warm coconut oil until liquid. Add essential oils. Stir. Store in a dark glass jar.

Application: Apply to scalp, massage 5 minutes, leave 30–45 minutes, shampoo out. 2–3 times weekly.

Why 4 drops clove for 50ml: Clove oil must be used at very low concentration for scalp — higher amounts cause scalp irritation and burning. 4 drops in 50ml carrier = approximately 0.4% concentration — within the safe range while still delivering therapeutic antifungal and circulatory benefit.

Recipe 5 — Winter Warming Massage Blend (Joint and Muscle Pain)

For the cold-season muscle stiffness and joint pain that the Nilgiris' cool climate (and pan-India winter months) intensifies.

Ingredients:

• 30ml sweet almond oil
• 4 drops clove essential oil (eugenol analgesic + beta-caryophyllene anti-inflammatory)
• 6 drops camphor oil (counter-irritant analgesic)
• 5 drops gaultheria/wintergreen oil (methyl salicylate COX inhibition)
• 4 drops peppermint oil (TRPM8 cooling vasodilation)

Method: Combine in a 30ml dark glass bottle. Shake before each use.

Application: Massage into stiff joints, sore muscles, or the lower back with firm circular pressure for 3–5 minutes. The warming onset from eugenol and camphor begins within 2–3 minutes of application.

Four-mechanism pain blend: Eugenol (sodium channel block + prostaglandin inhibition), camphor (TRPV1/TRPA1 counter-irritant), methyl salicylate (COX-2 inhibition), menthol (TRPM8 vasodilation). This is the most comprehensive natural pain blend in the OotyMade range — each component working through an independent analgesic pathway.

Eugenol Safety — The Liver Toxicity Context

Eugenol is hepatotoxic at high doses. This requires clear explanation:

In normal topical and aromatherapy use: The amounts of eugenol absorbed through intact skin or briefly inhaled in aromatherapy are far below doses associated with liver toxicity. Topical use of clove oil at correct dilutions is considered safe for adults.

In oral applications: Spitting out (not swallowing) oral care applications keeps eugenol exposure minimal. Small amounts inevitably enter with saliva — at the levels in a properly diluted oral application, this is within safe dietary exposure.

Where the liver risk becomes real:

• Swallowing clove oil directly
• Using undiluted clove oil orally (much higher eugenol contact)
• Prolonged, repeated oral applications (multiple times daily over extended periods)
• High doses of eugenol supplements

The NCBI LiverTox database documents that "eugenol in therapeutic doses has not been implicated in causing serum enzyme elevations or clinically apparent liver injury, but ingestions of high doses, as with an overdose, can cause severe liver injury."

The practical guidance: use diluted clove oil as described in this guide, always spit, don't swallow, and don't exceed 3 oral applications per day for emergency pain relief.

How to Identify Quality Clove Oil

Eugenol content: Quality therapeutic clove oil has 70–90% eugenol. Ask your supplier. Oil with less than 65% eugenol either uses a different plant part (leaf oil has lower eugenol than bud oil) or is diluted.

Part of plant used:

• Bud oil (from dried flower buds): 70–90% eugenol. The premium, therapeutically strongest form. OotyMade's clove oil is bud oil.
• Leaf oil: 70–82% eugenol but with different minor compound profile; coarser fragrance
• Stem oil: lower eugenol content; primarily used industrially

Scent: Genuine quality clove bud oil has a warm, intensely spicy, slightly sweet fragrance with woody depth. Adulterated oil may smell harsher, thinner, or more synthetic.

Storage and shelf life: 3–5 years when stored correctly (amber glass, cool dark location, tightly capped). Clove oil is one of the most stable essential oils due to eugenol's natural antioxidant properties.

Clove Oil vs. Tea Tree Oil for Acne — Which to Choose?

A question frequently asked, given both are antibacterial spot treatments:

The OotyMade recommendation: Use tea tree oil as your primary daily acne treatment at 5% dilution in jojoba oil. Reserve clove oil as an escalated spot treatment for individual severe cystic spots that haven't responded to tea tree — used once daily at 1%, for 3 days maximum.

Frequently Asked Questions

Can I use clove oil directly on a toothache without diluting? No — applying undiluted clove oil to gum tissue causes chemical burns and tissue damage. The correct method is always to dilute in a food-grade carrier oil (1 drop clove in 5–8 drops olive or coconut oil) and apply with a cotton bud to the tooth surface, minimising gum contact. The 2006 clinical trial that confirmed clove oil equals benzocaine used a gel formulation — concentrated but formulated, not neat oil.

Is clove oil safe to swallow in small amounts? Small trace amounts (from food use — cloves in biryani, spiced tea) are safe and classified as GRAS (Generally Recognised As Safe) at dietary levels. Clove essential oil itself should not be swallowed — the concentrated eugenol content creates hepatotoxicity risk with deliberate ingestion. Always spit out during oral care applications.

Can I use clove oil on my baby's gums for teething? Never. This is a persistent and dangerous misconception in Indian parenting groups. Clove oil causes tissue damage to infant gum mucosa and, if swallowed, is toxic to infants' smaller bodies. Chilled teething rings or a clean, damp cloth rubbed gently on gums are safe alternatives. Consult your paediatrician for teething pain management.

How long does clove oil toothache relief last? Typically 30–90 minutes per application. The local anaesthetic mechanism (sodium channel blockade) is temporary — nerve conduction resumes as eugenol metabolises and diffuses away. Clove oil provides emergency relief to manage pain until dental treatment is possible — not a permanent solution.

Can I use clove oil in my diffuser? Yes — diffusing a small amount of clove oil (1–2 drops with other oils in 100–200ml water) for 30–45 minutes provides antimicrobial air purification and the characteristic warm, spicy atmosphere of South Indian festivals and spice markets. Do not diffuse concentrated clove oil alone — eugenol vapour at high concentrations irritates mucous membranes. Blend with lemongrass or eucalyptus for a complete purification blend.

What is the difference between clove oil and clove bud oil? Clove bud oil is distilled specifically from the dried flower buds — the highest-quality and highest-eugenol fraction (70–90%). Clove leaf oil (from leaves) and clove stem oil (from stems and bark) have lower and different eugenol profiles and coarser fragrances. For therapeutic applications — dental care, antimicrobial, analgesic — always choose clove bud oil. OotyMade supplies clove bud oil.

Related Essential Oil Guides from OotyMade

Tea Tree Oil — Acne, Dandruff and Skin Guide Camphor Oil — Pain Relief, Congestion and Safety Guide Peppermint Oil — Pain, Hair Growth and Pudina Tel Guide Rosemary Oil — Hair Growth and Scalp Guide Nilgiris Essential Oils — Complete Guide to All 12 Oils How to Store Essential Oils in India Shop All Nilgiris Essential Oils

Disclaimer: This blog post is for informational and educational purposes only. It does not constitute medical or dental advice. Clove oil provides temporary symptomatic relief for dental pain — it does not treat underlying dental conditions. Always consult a dentist for tooth pain. Do not use clove oil on infants or young children. OotyMade's clove essential oil is for external use only.

OotyMade.com — Pure clove bud essential oil from South Indian suppliers. DPIIT Startup India recognised. Dispatched within 48 hours from Ooty, The Nilgiris. Free delivery above ₹500 across India.