12/05/2022
Arnica is my go to herb when it comes to relieving the inflammation and pain of bumps, bruises, sprains, muscle strains, and painful bug bites here at the ranch. Wherever arnica grows, people have used the flowers topically as an analgesic. Arnica montana is the best known of the arnica species and is the one most commonly sold in commercial products. I harvest Arnica cordifolia flower (heart leaf arnica) as this species is indigenous to our mountains of northern New Mexico. Studies have clearly demonstrated the anti-inflammatory effects of arnica when applied topically and a 2017 review concluded that, “Based on data from clinical trials, Arnica extract or gel/cream containing Arnica extract shows promising effects for pain relief.”
While I use arnica topically, Arnica montana is also widely used as a homeopathic preparation for internal use, particularly for acute injury. Arnica contains potentially toxic compounds, which are not harmful when used topically on unbroken skin or when taken orally in homeopathic preparations.
How to Use:
ARNICA OIL: Mountain Rose Herbs sells a nice arnica herb oil, though you can make your own by filling a pint jar with dried arnica flowers and completely covering with a carrier oil (sunflower seed, olive oil, etc.). Put a lid on the jar and let sit in a warm place for 2-3 weeks and then strain. This is wonderful for using on sore joints and muscles, though, I would not put an herbal oil on a acute injury.
CREAMS AND GELS: I like the Italian Dulac Arnica Gel for aching joints and muscles. Primarily arnica flower with a little menthol and thyme. I also like Kneipp Cooling Arnica gel (25% arnica tincture). These are herbal creams/gels. If looking for homeopathic product, Boiron Arnicare, Arniflora, and Traumeel are all good products.
COMPRESS: Steep 2 tablespoons of arnica flowers in 2 cups water for 10 minutes. Strain. Cool (add ice cubes to the liquid if there is swelling). Dip washcloth into cool liquid and apply to injured area. Leave on for 15 minutes. Reapply 3-4 times per day. ONLY use on unbroken skin.
Precautions:
Arnica should not be taken internally. It can cause heart arrhythmias and possible respiratory collapse; this concern is avoided with homeopathic preparations because the arnica has been significantly diluted. Applied externally, arnica is usually well tolerated; if a rash appears, discontinue use. I do not recommend arnica to be used topically on children 3 years old and under.
References:
Smith AG, et al. Clinical Trials, Potential Mechanisms, and Adverse Effects of Arnica as an Adjunct Medication for Pain Management. Medicines 2021 Oct 9;8(10):58.
Arnica. Herbalgram 107; 1-6 https://www.herbalgram.org/resources/herbalgram/issues/107/table-of-contents/hg107-herbpro-arnica/