Yellow scabs behind the ears of infants are mainly associated with infant eczema. Infantile eczema is an allergic skin inflammation with genetic, environmental, dietary, and overwashing causes. The child mostly appears yellow ooze or yellow-white plasma crust in the acute stage, subacute crust gradually reduced, lesions are mainly small papules, chronic stage mainly appear skin thickening, treatment methods are as follows: 1, general treatment: infants dress as loose as possible, cotton clothing, avoid wearing woolen sweaters and other allergy-prone clothing. Choose the correct bathing method, should be in the appropriate water temperature bathing, once a day. Choose preservative-free emollients, and choose the dosage and form of emollients according to the season, the site of the lesion and the characteristics of the lesion of the child under the guidance of the doctor; 2. Zinc oxide paste, dexamethasone ointment. If the infant is allergic to milk, fish, shrimp, beef or mutton, eggs, etc., complementary foods should be avoided, and physical factors such as sunlight, ultraviolet light, cold, heat and humidity should also be avoided. In addition, if the yellow scabs that appear behind the baby’s ears are milk scabs, attention to cleaning is usually sufficient and no special treatment is needed.