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Arnica

Skin and Topical

Arnica montana

PregnancyNursing

Last updated Mar 27, 2026

Description

Arnica is a European mountain plant used topically for centuries to treat bruises, sprains, and muscle pain. It is one of the most popular homeopathic remedies worldwide and is also used as a conventional herbal topical preparation. Internal use of non-homeopathic arnica is toxic and should be avoided.

Active Compounds

HelenalinDihydrohelenalinArnifolinThymol derivativesFlavonoids

Traditional Uses

Bruise treatment
Sprain and strain relief
Muscle pain
Wound healing
Anti-inflammatory

Modern Uses

Bruises and contusions
Post-surgical swelling
Muscle soreness
Sprains and strains
Osteoarthritis (topical)

Dosage Information

Recommended dosing guidelines

Forms: topical, other
Adult Dose: Topical gel or cream applied 2-4 times daily to unbroken skin only
Child Dose: Topical use for children over 2 on unbroken skin
Preparation Notes: FOR TOPICAL USE ONLY. Never apply to broken skin or open wounds. Do not take internally (toxic). Homeopathic arnica (highly diluted) is a separate product category. Apply gel or cream to bruises, sprains, or sore muscles and massage gently.

Safety Information

Not recommended during pregnancy

Not recommended while nursing

Contraindications

Open wounds or broken skin
Internal use (toxic)
Allergy to Asteraceae family
Pregnancy

Possible Side Effects

Contact dermatitis
Skin irritation
Eczema on prolonged use
TOXICITY IF INGESTED (cardiac arrest, organ failure)

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