The clinical appearance of cysts in the axilla is usually seen in two common diseases: 1. It is mainly seen in young female patients with axillary parametrium, accompanied by cystic hyperplasia of the breast. The painful symptoms are especially obvious at the onset of menstruation and disappear after the menstrual cycle. Further ultrasound examination is usually required to make a clear diagnosis. The main treatment is to dredge the liver and regulate the qi, and if the symptoms are serious, you can consider oral treatment with Zhuangyao pill or breast disease capsule. 2. sebaceous cysts in the axilla. If a sebaceous cyst is accompanied by infection or even the formation of an abscess cavity. This usually requires timely incision and drainage, drainage of pus, and placement of drainage strips. At the same time, oral antibiotics, or even intramuscular or intravenous antibiotics are required in severe cases, and after the inflammation is under control, complete excision of the sebaceous cyst is electively performed. If there is no infection, sebaceous cysts can be removed at once under local anesthesia, and the cure can be achieved.