Children with oily hair and dandruff may be seborrheic dermatitis, which can be improved through daily conditioning, and if necessary, external and oral medication. Seborrheic dermatitis daily need to pay attention to the regularity of life, sleep enough, limit the fat and sugar diet, avoid spicy stimulating food. Hair washing frequency should be appropriate, shampoo should choose mild non-irritating products, avoid hot water scalding. Treatment can use selenium disulfide lotion, ketoconazole lotion and other relief. Oral antihistamines such as cetirizine hydrochloride drops are needed when itching is significant, in addition to appropriate supplementation of B vitamins. Children with oily hair and dandruff should go to the hospital in time to check, the use of the above drugs should follow the doctor’s instructions.