Patients with dandruff and itchy greasy acne can be considered seborrheic dermatitis. This disease belongs to the chronic inflammatory skin disease, mostly occurs in the head, face, chest and back and other parts. At present, the treatment of this disease includes general treatment, drug treatment and so on. 1. General treatment: patients need to maintain a regular life and get enough sleep; regulate diet, limit the fat and sugar diet, avoid alcohol and stimulating food; avoid excessive cleaning and friction, use mild moisturizer, strengthen oil control and moisturizing. 2. Medication: Patients can use topical medications that have the effect of dissolving lipids, exfoliating keratin, anti-inflammatory and anti-itching. For the more serious inflammation lesions, patients can use weak glucocorticoid preparation; for glucocorticoid treatment is not obvious effect of patients, you can choose to use calcium-modulated phosphatase inhibitors; patients with fungal infection can choose to use antifungal preparations; patients can also choose to use sulfur-containing, salicylic acid preparation for antibacterial, anti-dandruff treatment. In addition, patients with severe scalp itching symptoms can take oral antihistamines (loratadine, etc.) for itching and sedation; serious fungal infections can be oral itraconazole and other antifungal drugs; serious bacterial infections can be short-term oral tetracycline and other antibiotics; the affected area is large in scope, inflammation is obvious, or even erythroderma tendency and there is no contraindication to short-term oral glucocorticosteroid drugs, as prescribed by the doctor. It is recommended that patients go to a regular hospital, under the guidance of a professional doctor, choose the appropriate treatment program, follow the doctor’s instructions to receive treatment.