(Old Man’s Beard)

Usnea is a lichen that is renowned for its anti-bacterial and anti-fungal properties. Usnea contains lichen acids, particularly usnic acid, which is effective against gram positive bacteria. Examples of these fast-growing bacteria are the following: streptococcus (strep throat), staphylococcus (impetigo), mycobacterium tuberculosis, and pneumococcus. Usnea can be helpful in treating the following acute bacterial infections: bronchitis, pneumonia, sinus infections, and pleurisy. The lichen acids have little effect on salmonella and E. coli, a gram-negative bacterium that inhabits the gastrointestinal tract. Usnea may also be included in formulas as an anti-bacterial for urinary tract infections and some kinds of digestive infections. It can be used as an alternative to the drug Flagyl. Usnea can be used as an anti-fungal internally and as a douche for yeast infections. Topically, usnea works well for fungal infections like athlete’s foot and ringworm. Salves, powders, creams, and tinctures are effective for topical use.

This information was written by Christa Sinadinos. It is not meant to diagnose or prescribe. Please consult with your health practitioner for serious health conditions, or before combining herbs with prescription or over-the-counter medications.