White patches of skin on the waist are considered to be vitiligo, florid chaff rash, white chaff rash and so on, which can be treated with medication, physical therapy, surgery and so on. 1. Vitiligo: Vitiligo may be caused by heredity, immune abnormality or oxidative stress, which makes the skin appear pigmentation loss patches, causing white patches of skin on the waist. You can apply hydrocortisone butyrate cream, fluticasone propionate cream and other medications as prescribed by your doctor, which can help the skin color to recover. If the disease is in the stabilization period, it can also be treated with autologous epidermal sheet transplantation. 2. Mottled furuncle: Mottled furuncle is the cause of Malassezia infection, which will make the skin appear dotted rash, and with the development of the disease will also lead to white patches of skin on the waist. You can apply clotrimazole solution, miconazole nitrate cream and other drugs, and with ultraviolet light therapy treatment, can help skin recovery. 3. Leukofuria: Leukofuria is related to microbial infection, which causes hypopigmented patches with unclear edges on the skin, resulting in white patches on the patient’s waist. The white chaffing usually subsides on its own, and patients with serious conditions can apply salicylic acid ointment, urea ointment and other drugs, oral vitamin B, so that the skin gradually recovered. White patches of skin on the waist are also related to post-inflammatory hypopigmented spots, skin trauma, etc. You can choose to go to the dermatology department of the regular hospital to determine the cause of the treatment, and the patient should not choose the drugs privately.