If you find that the back of the baby’s head is hot but the forehead is not hot, you should measure the baby’s body temperature, closely observe the mental state and crying, and consider that it is caused by cold and fever, local skin allergy, local skin infection, etc., you need to go to the hospital for examination and treatment. 1, cold and fever: the back of the baby’s head is hot but the forehead is not hot, it may be due to uneven heat dissipation when fever, you need to promptly measure the baby’s Armpit temperature, according to the situation can take physical cooling methods, such as warm water baths, can also follow medical advice to ibuprofen pellets; 2, local skin allergies: mostly due to the back of the head of the skin contact with allergens, the back of the baby’s head in addition to heat, there are redness, swelling, itching, rash and other symptoms. You need to immediately consult a doctor, actively identify the allergens, follow the doctor’s instructions to use topical skin cream ointment, if necessary, take anti-allergy drugs, such as chlorpheniramine maleate tablets, loratadine; 3, local skin infection: after the skin of the back of the head is infected, there will be a sense of fever, swelling, and even pain when touching this, but there are no such symptoms in other parts. It is recommended to improve the blood routine, smear examination, follow the doctor’s advice to apply local iodophor disinfection, also can be treated with topical fusidic acid cream, at the same time, pay attention to keep the back of the head local hygiene clean.