Seborrheic dermatitis can be prevented from recurring through enhanced skin care, as well as life adjustments and dietary modifications. Seborrheic dermatitis is a chronic inflammatory skin disease commonly found on the head, face, chest and back, etc. The cause of the disease is still unclear, and it may be related to the skin’s impaired barrier function, Malassezia fixation, immune function and other factors. 1. Enhance skin care: you should keep your skin clean and hygienic, suggest using mild shower gel or warm water to wash, avoid hot water scalding, reduce hair coloring and perming. 2. Life adjustment: live a regular life, go to bed early and get up early, ensure sufficient and good sleep, combine work and rest, appropriate exercise and rest, avoid mental stress, maintain a positive and optimistic state of mind. 3. Dietary adjustments: balanced diet, eat more fruits and vegetables, eat less high-sugar, high-fat food, as well as stimulating spicy food. If seborrheic dermatitis occurs, you should consult a doctor in time and follow the doctor’s instructions for treatment.