This is the manifestation of seborrheic dermatitis. Seborrheic dermatitis is a chronic inflammatory skin disease, which occurs in the head, face, chest and back, and seborrhea is more common.

Guiding opinions:

1. General treatment: regular life, adequate sleep, regulating diet, limiting lipopolysaccharide diet, fasting spicy food and wine, and eating more fruits and vegetables.

2. Ketoconazole ointment for external use.

3. Oral administration: vitamin B6 or vitamin B complex, and appropriate zinc supplementation; In addition, loratadine and cimetidine were given orally for two weeks.