If a patient has an abscess behind the ear, it depends on the size of the abscess. If it is relatively small, you can use iodophor and apply Bactrim cream after repeated disinfection to reduce inflammation, and the abscess may subside on its own. However, if the abscess protrudes very obviously, even obvious fluctuation feeling, generally need to incision and drainage or direct surgery to remove the abscess completely, it is recommended to consider the routine application of antibiotics to prevent infection, commonly used is azithromycin dispersible tablets, before using the drug need to clarify the history of allergies. Incision and drainage can be disposed of in the outpatient clinic, but if the surgery often requires hospitalization, the surgery can be done under local anesthesia, and if the child is too small, it often requires general anesthesia to avoid the inability to cooperate, and after active treatment the patient’s abscess behind the ear will be resolved.