Shaving your head is not a treatment for seborrheic dermatitis. Seborrheic dermatitis is an inflammation of the skin caused by excessive secretion of sebaceous glands due to heredity, microbial infections such as Malassezia, increased skin lipids, and impaired skin barrier function. Patients with seborrheic dermatitis of the scalp tend to have yellowish-red patches with greasy flakes and itchiness, and in severe cases, they may also have scabs, vesicles, oozing, and odor. General shaving can not achieve the therapeutic effect. Patients can use topical glucocorticoid creams such as prednisone and dexamethasone, antifungal preparations such as ketoconazole and miconazole cream, and antifungal shampoos to wash the hair such as ketoconazole shampoo, if necessary, under the guidance of a doctor. Severe symptoms can also be treated with oral antihistamine drugs such as benadryl and loratadine. Shaving the head is generally not a treatment for seborrheic dermatitis. Patients can go to regular hospitals, under the guidance of doctors, standardized treatment.