The medicine of unsea:
Usnea is very a very valuable medicine to keep in your home apothecary. 
She is:
-Anti-viral
-Anti-microbial
-Anti- bacterial
-Anti-fungal
-Its an antibiotic against gram positive bacteria (here's link to the difference between gram+ and gram-)
-Vulnerary
Usnea has a special affinity for:
-treating virus's
-respiratory illness
-allergy symptoms
-sinus infections
-kidney and bladder infections
-pneumonia
Because usnea is antimicrobial it is a wonderful medicine for all types of pathogens. Most pharmacuetical antibiotics destroy all bacteria, including the good ones, but usnea and its anti-biotic properties do not kill off good bacterial and gut flora. 
These statements & products have not been evaluated by the FDA. This information is for educational purposes only. This product is not intended to diagnose, cure, or prevent any disease. Consult expert medical advice before using, during pregnancy, or if you are on any medications. Contraindications may exist.