The sebaceous cyst, also called epidermal cyst, is some sebaceous glands secretion of sebum or keratin material, the local formation of the cyst wall wrapped, and the formation of the swelling, the surface can have an opening and the skin outside, can be improved through drug therapy, incision and drainage, etc., as follows: 1, drug therapy: if the epidermal cyst appears bacterial infection, the local can appear red and swollen performance, can be symptomatic treatment, can be treated. The local topical anti-inflammatory drugs, or oral cephalosporin, etc., anti-infection treatment, after treatment, most can subside. 2, incision and drainage: If the local formation of suppuration, you can incision and drainage, the pus will soon improve after the drainage. When the inflammation subsides, if you want to eradicate it completely, you can do surgery to remove the epidermoid cyst completely.