Lymphatic retention cysts may be caused by the obstruction of local lymphatic fluid reflux, which can be treated by medication, physical therapy, local puncture and fluid extraction, and surgical resection. 1. Drug treatment: after the formation of lymphatic retention cysts, due to the stagnation of lymphatic fluid, local tissues may be infected with bacteria and inflammation, you can take amoxicillin, cefadroxil and other antibiotic drugs to prevent infection as prescribed by the doctor. 2. Physical therapy: hot compresses on the affected area, infrared radiation and other physical therapy can promote blood circulation in the affected area, thus promoting lymphatic absorption. 3. Local puncture and fluid extraction: sometimes a large amount of fluid will be produced in the lymphatic retention cyst, in this case, local puncture can be considered to extract the fluid and reduce the size of the cyst. 4. Surgical resection: If the cyst is relatively large in size and produces obvious compression symptoms, it is best to remove the diseased lymphatic tissue through surgery in time to prevent malignant changes in later stages. For lymphatic retention cysts, you should go to the hospital and be treated by professional doctors according to your condition.