Itchy penis root, need to be treated according to the cause of the disease, jock itch, can be used externally clotrimazole ointment, ketoconazole ointment; contact dermatitis, can be used externally glycerine lotion, hydrocortisone ointment; pubic lice disease, you can scrape off the pubic hair, externally use the tincture of bacitracin, sulfur ointment, and other drugs. 1. ringworm: mainly red trichophyton, fungal infections such as trichophyton mustelii, resulting in perineum, groin, buttocks and other superficial layers of the skin ringworm disease, can cause the root of the penis itchy symptoms; can be used externally to treat antifungal ointment, commonly used clotrimazole ointment, ketoconazole ointment, terbinafine cream, and so on. 2. contact dermatitis: the root of the penis skin in contact with external sensitizers, may cause local allergic reaction, resulting in the root of the penis itchy symptoms; first of all, to avoid contact with sensitizers, you can use glycerine lotion, hydrocortisone ointment, compound dexamethasone ointment and other drugs treatment. 3. pubic lice disease: mainly due to pubic lice bite the skin in the pubic hair area, causing skin rashes, itching and other symptoms, can also cause itchy penis root; first of all, remove pubic hair, underwear hot water ironing, personal appliances alone, can be applied locally tincture, sulfur ointment, and other medications for treatment, it is recommended that the other side of the sex life at the same time to check the diagnosis and treatment. Penis root itch, there may be other reasons, it is recommended to go to the hospital in a timely manner to check, follow the doctor’s instructions for treatment, do not blindly use their own medicine.