A small amount of fluid in the knee joint should pay attention to the braking of the affected limbs, reduce the weight bearing and activities of the knee joint, can effectively reduce the inflammatory exudation of the knee joint. In the acute stage can be appropriate cold compress, you can also choose to use topical ointment, such as flurbiprofen gel paste, medical cold therapy paste, ibuprofen paste, this kind of ointment can be used externally to play the role of cold compress affected area, reduce the role of the acute exudate, but also can significantly relieve the pain. After the acute phase, you can use Chinese herbal medicines, such as blood circulation and pain relief cream, Qizheng pain relief patch, or you can choose heat therapy, such as salt bag hot packs, baking lamp irradiation, infrared irradiation can promote the absorption of fluid. A small amount of fluid in the knee joint sometimes originates from bacterial infection, and oral anti-inflammatory drugs, such as cephalosporins and penicillins, can be used to treat this kind of cause. Acute pain period can be temporarily oral non-steroidal drugs to relieve pain and reduce inflammatory exudation, can be oral ibuprofen, cilostro and other drugs.