There are many reasons for vulvar itching after menstruation. Inflammation of the vulva can be caused by not paying attention to personal hygiene during menstruation and not washing the vulva every day. In this case, you can go to the drugstore to buy a lotion, such as gynecological inflammation clean or cleaner 1:10 water to wash the vulva, or to carry on the local sitz bath for 15-20 minutes, and use the medicine for 3-7 consecutive days. You can also go to the hospital for a leukorrhea test, according to the results of the test for local medication can also be. Allergic to sanitary napkins, pads and other allergic conditions, may also appear on both sides of the vulva itching, such a situation can go to the drugstore to buy complex iodine, for local disinfection, and then wipe erythromycin ointment for local anti-inflammatory, generally 3-7 days of medication can be carried out to improve.