If the vulva is itchy, the specific medication should be analyzed comprehensively, mainly to understand the causes of vulvar itching. 1. If the vulva is itchy and has red papules and rough skin, it is likely to be caused by vulvar dermatitis, which can be treated locally with paregoric pine or dermatoprene for 3-5 days, and the symptoms will be significantly relieved or disappear. 2.