Used as a nervine, astringent, stimulant, uterine tonic, disinfectant, and anodyne. St John's Wort is said to be healing, having antibacterial properties. It is used locally for its emollient properties in relieving aches for treatment of sunburn, frostbite, bruises, and superficial burns. Medically, it is presently being employed as an antidepressant. New studies are being conducted utilizing St John's Wort for HIV virus and hypericin is showing substantial activity against the HIV-1 virus.