Vulvar lichen planus can be related to vulvar eczema, vulvar fungal infection or vulvar psoriasis, etc. The cause of vulvar lichen planus needs to be diagnosed by a doctor, and the treatment plan will be chosen according to the cause. 1. Vulvar eczema: skin inflammation caused by a variety of etiologic factors, the skin manifests itself in polymorphic damage, with intense itching. The treatment is topical hormonal ointment such as tretinoin ointment, immunosuppressant such as tacrolimus cream, with glycerite lotion topical wash and so on. Oral medications include antihistamines, steroids, etc. Antibiotics should be added in case of infection. 2. Vulvar fungal infections: Fungal infections caused by sweaty vulva and humid environment. Anti-fungal creams such as amorolfine cream, terbinafine cream, miconazole clobetasol cream can be applied locally. For stubborn or serious cases, oral antifungal drugs such as terbinafine tablets and itraconazole capsules can be taken. 3. Pubic psoriasis: It is a chronic inflammatory skin disease mediated by both environmental and immune factors. Topical glucocorticoid or calcium-modulated phosphatase inhibitors can be used to fight inflammation. Additional ointments to slow down symptoms include retinoid ointment and tacrolimus cream. If you have moss on the pubic area, you should go to a regular hospital as soon as possible and avoid self-medication.