Camphor

Camphor takes its name from Kapur, the Sanskrit and Hindi word for the substance, reflecting its long use across Indian households and traditional medicine. It is a white, waxy, crystalline compound with a strong, penetrating smell, chemically classified as a terpenoid (C10H16O). In regions where the camphor tree does not grow, it is manufactured synthetically from pine or turpentine oil.
In Ayurveda, Karpura (camphor) is described as Tikta and Katu in rasa (bitter and pungent taste), Sheeta in virya (cooling in action), and is traditionally associated with pacifying Kapha and Pitta dosha when used appropriately, though sources vary on some of these attributes.
It is traditionally credited with Deepana (appetite-stimulating), Pachana (digestive), Lekhana (fat-scraping) and Shothahara (anti-inflammatory) actions. Topical preparations such as camphor oil, creams and balms are traditionally used for musculoskeletal discomfort, minor skin irritation and nasal congestion, but these uses should not replace appropriate medical care for persistent, severe or worsening symptoms.

Camphor is known by several names across regions and languages:

• Botanical name: Cinnamomum camphora
• English: Camphor
• Hindi/Sanskrit: Kapur, Kapoor, Karpura
• Hindi & Punjabi: Kapur or Karpur
• Tamil: Karpooram
• Telugu: Karpooram or Chandramu
• Kannada: Kappura or Pache karpoora
• Malayalam: Karppuram or Ghanarasam
• Marathi: Kapoor or Kapura
• Gujarati: Kapoor or Kapura
• Bengali: Karpur 
• Odia: Kopuro or Ghonosaro

The compounds below give camphor its characteristic aroma and its traditional and studied properties.
Camphor (C10H16O), a bicyclic monoterpene ketone and the main constituent, responsible for the substance's cooling sensation and strong aroma
Borneol, a related monoterpene found in some camphor preparations and traditionally used in Ayurvedic and Chinese medicine (Lee et al., 2022)
Pinene, a bicyclic monoterpene that contributes to the characteristic scent

Camphor is traditionally recognised, and in some cases laboratory-studied, for the following actions on the body:

• Analgesic: may help ease minor muscular and joint discomfort when applied topically
• Anti-inflammatory: traditionally used to help calm mild, localised inflammation
• Counter-irritant: produces a warming or cooling sensation on the skin that can distract from underlying discomfort
• Antimicrobial: laboratory studies suggest camphor and camphor oil have activity against certain bacteria and fungi on the skin (Duda-Madej et al., 2024), though this has not been established in human clinical trials
• Decongestant: its vapour is traditionally used to ease the feeling of a blocked nose
• Carminative and digestive: in small, edible amounts, traditionally believed to support digestion

These are traditional and laboratory-level findings rather than proven clinical treatments, and camphor should not be used as a substitute for prescribed medical care.

Camphor is mainly used topically or as a vapour to provide temporary relief from nasal congestion, minor muscle and joint discomfort, itching and mild skin irritation. Its cooling and counter-irritant effects may help ease symptoms, while evidence for broader anti-inflammatory benefits in humans remains limited. Edible camphor should only be used under qualified Ayurvedic supervision because excessive intake can be toxic (Mathen et al., 2018).

May Help Ease Nasal and Chest Congestion

Camphor vapour, inhaled or applied as a chest rub, is traditionally believed to help relieve the sensation of nasal blockage associated with the common cold. It works as a mild counter-irritant, creating a cooling or warming sensation that can make breathing feel easier, though it does not clear the underlying infection.

May Support Relief From Minor Muscular and Joint Discomfort

Topical camphor is widely used in balms and oils for everyday muscular aches, mild joint stiffness and minor sprains. Its counter-irritant action stimulates nerve endings in the skin, which may help reduce the perception of deeper discomfort, while its analgesic properties are traditionally associated with mild pain relief.

May Support Digestion in Small, Edible Amounts

In Ayurveda, a very small amount of edible camphor is traditionally believed to stimulate appetite and support digestion, in line with its Deepana and Pachana properties. This use is only appropriate under the guidance of a qualified Ayurvedic practitioner, since larger amounts can themselves cause nausea and vomiting.

May Help Calm Minor Skin Irritation

Camphor-based creams and lotions are commonly used for itching, insect bites and mild skin irritation on intact skin. Its cooling sensation and mild anti-inflammatory action are traditionally credited with soothing localised discomfort, though it should never be applied to broken or burnt skin.

Anti-inflammatory Properties

Camphor has demonstrated anti-inflammatory activity in laboratory and preclinical studies (Shabbir & Parvinzadeh Gashti, 2026), but evidence in humans is limited. It should not be described as a proven treatment for inflammation or burns, and camphor-containing products should not be applied to broken or burnt skin.

Camphor is commonly used as a vapour for a fresh, clear sensation, topically for minor muscle discomfort and itching, and in limited traditional internal preparations. Internal use requires particular caution because incorrect amounts or types of camphor can cause toxicity.

Aromatherapy

Camphor vapour, released from a diffuser or inhaler, is traditionally used to create a fresh, clear feeling and is commonly used when someone has a stuffy nose or mild cold symptoms. Use only a commercially formulated camphor vapour product according to its instructions.

Topical Application

Camphor oil, cream or balm is massaged onto intact skin over sore muscles or joints, or dabbed on insect bites and minor itching, for its cooling, counter-irritant effect.

Camphor has genuine traditional and topical benefits, but it must be used carefully to avoid harm. Please read and follow these precautions.

• Do not eat non-edible camphor: raw or industrial-grade camphor is poisonous. Swallowing even a small amount can cause vomiting, seizures and, in severe cases, death. Only camphor specifically labelled for medicinal use should be considered for internal use, and only under the guidance of a qualified practitioner. It must never be confused with ordinary camphor tablets or crystals sold for household use.
• Avoid in children, and in pregnancy and breastfeeding: Children are particularly vulnerable to camphor toxicity. Never give it orally and do not use concentrated, unlabelled or household camphor on or near a child. Follow the minimum age on any licensed topical product. It should not be used on or near infants, pregnant or breastfeeding women should consult a doctor before using camphor, as safety data are limited.
• Use the correct dose and route: applying too much, inhaling too much, or using it near the eyes or on broken skin can cause irritation, swelling, rashes or an allergic reaction. Using more than the recommended amount, in any form, can lead to camphor toxicity, with symptoms such as dizziness and confusion.

If you are pregnant, breastfeeding, or considering camphor for a child or for internal use, consult a doctor or a qualified Ayurvedic practitioner before use.

Camphor is used differently depending on the form you have and what you are using it for.

Using Camphor Crystals

Camphor crystals are most often used for steam inhalation, or commercially formulated topical products are used for topical rub. Use only a labelled vapour product according to its instructions. Keep crystals in a sealed container, away from children, at all times.

Using Camphor Oil or Balm Topically

Camphor oil, cream or balm is applied to intact skin over the affected muscle, joint or area of irritation, at the concentration specified on the product label, and gently massaged in. It should not be applied to broken skin, near the eyes, or under a tight bandage.

Using Camphor in Aromatherapy

Camphor-containing inhalation products may be used according to their product instructions to release aromatic vapour into the room, which some people find helpful for a stuffy nose or mild cold symptoms.

Note: Camphor's safety depends on the form, concentration and route used. Camphor oil should never be applied to broken skin, and camphor-containing products should be kept away from children and used cautiously in people with respiratory conditions.

Camphor dosage depends on both the form used and the person's age. The figures below are general guidance only; a doctor or Ayurvedic practitioner should confirm the right dose for you.

Children

Camphor is not recommended for children, whether applied to the skin, inhaled or taken by mouth, unless specifically advised and supervised by a paediatrician or qualified practitioner. Children may be more vulnerable to camphor toxicity, including after skin exposure.

Teenagers

Topical use at a concentration of 3 to 11 percent may be appropriate for mild muscular discomfort, used sparingly and only on intact skin. Internal or aromatherapy use should only follow a qualified practitioner's advice.

Adults

• Topical: apply a 3 to 11 percent concentration product to the affected area, up to the frequency stated on the product label. 
• Aromatherapy: use camphor-containing products according to the product instructions. 
• Steam inhalation: avoid adding camphor crystals to boiling water unless specifically advised by a healthcare professional, as concentrated vapour can cause irritation or toxicity. 
• Internal use: only a product specifically intended for internal use, and only when advised by a qualified Ayurvedic practitioner.

Elderly

The same topical, aromatherapy and steam-inhalation guidance for adults generally applies, though a lower concentration is often advisable given thinner, more sensitive skin. Anyone with an existing respiratory or heart condition should check with their doctor before using camphor inhalation.

Note: This is general guidance and not a substitute for a consultation with a doctor or registered Ayurvedic practitioner, particularly for internal use or use in children.

Camphor is generally well tolerated in small topical amounts, but incorrect use can cause the following side effects.

Skin Irritation

Camphor can cause redness, a burning feeling, or a rash, especially on sensitive skin or if applied too often or at too high a concentration. A patch test on a small area of skin is advisable before first use, particularly for anyone with sensitive skin or a history of allergies.

Allergic Reaction

A small number of people may be sensitive or allergic to camphor. Signs include hives, swelling, or difficulty breathing. Stop use immediately and seek medical attention if any of these occur.

Camphor Toxicity

Camphor is poisonous if swallowed or absorbed in excessive amounts. Signs of toxicity include nausea, vomiting, headache, dizziness, confusion and seizures. If you suspect camphor poisoning, especially in a child, seek emergency medical help immediately or contact your nearest poison control centre; do not wait for symptoms to worsen.

Camphor can interact with certain other topical or oral treatments. Check with a doctor or pharmacist in the situations below.

Other Topical Pain-Relief Products

Using camphor-containing balms together with other topical analgesics, such as menthol- or methyl salicylate-based rubs, on the same area of skin may increase the risk of irritation or other adverse effects.

Oral Medicines, if Camphor is Taken Internally

Edible camphor should only be taken under professional guidance, and the practitioner should be told about all other medicines being taken, since data on its interaction with prescription drugs is limited.

Storage of Camphor

Camphor sublimates readily, meaning it can turn from a solid directly into vapour at room temperature, so correct storage matters both for potency and for safety.

• Keep camphor in a tightly sealed, airtight container to slow evaporation and preserve its quality.
• Store in a cool, dry place away from direct sunlight and away from any source of heat or flame, since camphor is flammable.
• Keep well out of reach of children and pets at all times, ideally in a locked cabinet, since accidental ingestion can be life-threatening.
• Do not store edible and non-edible camphor together or in similar-looking containers, to avoid accidental mix-ups.

• Camphor is a versatile, aromatic compound traditionally used topically for minor muscular discomfort, skin irritation and nasal congestion under professional guidance.
• Its benefits are supported mainly by traditional use and limited laboratory research; it is not a proven cure for any disease and should not replace prescribed medical treatment.
• Non-edible camphor is poisonous if swallowed, and it should always be kept out of reach of children.
• Camphor is not recommended for infants, young children, or pregnant or breastfeeding women without medical advice, and dosage should always follow the product label or guidance from a qualified practitioner.