Treatment of postoperative lymphedema in breast cancer is currently divided into two categories: conservative treatment and surgical treatment. Patients with mild and moderate edema are mostly treated conservatively, while those with severe and refractory cases can be considered for surgery. Conservative treatment also includes physical therapy and medication. Conservative treatment includes physical therapy and medication. Currently, the commonly used methods such as rehabilitation exercises, elastic bandage, manipulation, lymphatic drainage, microwave, Chinese medicine massage and acupuncture are all physical therapy. There are not many drugs used to treat postoperative lymphedema after breast cancer surgery, except for Chinese herbal medicine, the most common ones are Avalanche, Maidenhair, and some diuretics.