An abscess behind the earlobe is considered to be an infection secondary to sebaceous cyst obstruction, and the patient may also have significant pain and even fever. The patient may also have significant pain and even fever. Local congestion and redness with tenderness may be evident on examination, and routine blood tests may show an increased percentage of white blood cells and neutrophils. In this case, surgery for incision and drainage should be chosen in a timely manner and can be performed under local anesthesia. The abscess cavity should be carefully separated, the fibrous and compartmentalized tissues should be destroyed, and adequate drainage should be performed. After the surgery, daily dressing changes are required to maintain local hygiene and dryness. Oral anti-infective medications should also be taken, commonly amoxicillin capsules, or optional penicillin V potassium tablets. In contrast, sebaceous cysts mainly occur on the head and face, where the sweat glands are more abundantly distributed.