The treatment of cysts in the area behind the ear depends on the size of the cyst and the presence or absence of abscess, as follows: 1. If the volume of the cyst is relatively small and does not produce acute inflammatory infection or special discomfort, it can be temporarily observed first to avoid repeated scratching and stimulation so as not to cause the cyst to gradually increase; 2. If the volume of the cyst is relatively large and causes local swelling and discomfort or acute inflammatory If the cyst is large and causes local swelling and discomfort or acute inflammation, further surgical treatment can be taken under the condition of active control of inflammation and infection to remove the cystic mass behind the ear completely to avoid recurrence; 3, if the patient has a local pus cyst condition, it is often necessary to take further treatment measures of incision and drainage while active anti-infection treatment to facilitate the recovery of inflammation as soon as possible.