Chronic simple moss of the vulva is usually difficult to cure. Vulvar chronic simple moss can be secondary to sclerosing moss, lichen planus and other vulvar diseases, and is related to chronic friction and scratching irritation. The treatment is mostly localized medication, such as localized use of Fosfomycin ointment, tretinoin ointment, etc., combined with physical therapy to reduce itching and restore the normal shape of the lesion skin. Symptoms can be reduced by treatment, but it is usually difficult to cure. Vulvar chronic lichen simplex moss has a long treatment period, patients need to follow the doctor’s instructions to use medication, do not stop without authorization, so as not to affect the efficacy of the drug. In daily life, avoid blindly using irritating skin care products, avoid friction and scratching. Diet should also be light and avoid allergy-inducing foods.