Genital herpes is a skin condition caused by the herpes simplex virus. It most commonly occurs in the genital areas. Genital herpes has also been attributed to the varicella-zoster virus. The most common symptoms of genital herpes are the formation of tiny reddish bumps, blisters, or sores, which can become very itchy, irritated, and painful. By using medical marijuana, patients with genital herpes may be able to reduce the pain and discomfort associated with the condition.