There is no such thing as how to treat seborrheic dermatitis of the scalp most completely. Adult seborrheic dermatitis is a chronic recurring process, patients can control the condition and relieve the symptoms of the disease through general treatment, medication and other ways. 1. General treatment: patients with seborrheic dermatitis need to have a regular daily routine, ensure sufficient rest time, and do not overwork. At the same time, avoid excessive cleaning or friction of the scalp, keep the scalp clean and dry. Diet, eat less spicy stimulation and high oil and fat food. 2. Medication: Patients with seborrheic dermatitis can use topical glucocorticoid drugs under the guidance of a doctor, such as mometasone furoate cream, dieldrin cream, etc., or calcium-modulated neural phosphatase inhibitors, such as tacrolimus cream, pimecrolimus cream and so on. When intense itching occurs, oral antihistamines, such as loratadine, may be prescribed. It is recommended that patients with seborrheic dermatitis of the scalp actively cooperate with doctors to take relevant treatment measures.