Seborrheic dermatitis is very difficult to get rid of. Seborrheic dermatitis is a chronic inflammatory skin disease, mainly manifested as red patches on the surface of the skin with greasy scales, accompanied by varying degrees of itching. The cause of seborrheic dermatitis is not yet clear, the patient usually through the regular treatment, the condition can be effectively controlled, but when the patient is again exposed to the triggering factors, such as diet, the environment, mental and other factors, easy to lead to recurrence, thus making it difficult to get rid of the root of the disease. Seborrheic dermatitis once diagnosed, it is recommended that patients go to the dermatology department of a regular hospital in a timely manner, during the treatment period to follow the doctor’s instructions to take medication, and at the same time need to pay attention to the regulation of the diet, eat less high-fat, high-sugar foods, avoid drinking alcohol, and maintain a sufficient amount of sleep, which is conducive to the recovery of the disease.