Yellow crusts on the outside of baby’s ears may be caused by infected wounds on the skin of the outer ear, eczema of the outer ear, pediatric otitis media and other diseases. According to the above possible causes, general treatment, drug treatment and surgical treatment can be taken. 1. General treatment: There are always yellow scabs on the outer contour of the baby’s ear. If it is caused by skin wound infection, it is necessary to keep the local area clean and sterilize it well. If it is caused by the external ear eczema, pediatric otitis media and other diseases, need to avoid contact with allergens, not weaned children, the mother’s diet need to reduce the intake of spicy and stimulating food. 2. Medication: Infection of the outer ear skin wound, resulting in skin pus, can be treated with local antibiotic ointment, such as common erythromycin ointment. Yellow crusts caused by eczema in the outer ear can be treated with loratadine (not recommended for children under 2 years old). Pediatric otitis media is given antibiotics when necessary. 3. Surgical treatment: Infection of the skin wound of the external auricle and eczema of the external ear usually do not require surgical treatment. If pediatric otitis media is accompanied by pus, tympanocentesis and tympanotomy can be chosen. The above medications need to be used under the guidance of a doctor. There are more reasons why there are always yellow crusts on the outer contour of the baby’s ear, and it is recommended to consult a doctor for timely diagnosis.