The 5-Day Blister product (produced by Postyme Products) is used as a topical counterirritant for the care of horses' legs, tendons, and joints. Treatment of tendonitis and swelling and relief of pain resulting from bowed tendons. Relief of problems and injuries of the shins, ankles, knees, and suspensory ligaments. Stimulation of blood circulation in the affected areas to help speed up the natural healing process of tissues. Only one piece available