Knee surgery can be used after the external application of traditional Chinese medicine, it is recommended that patients choose the external application of surgery after the removal of stitches and wound healing, drug allergy is prohibited. After knee surgery, patients can generally use Chinese medicine to apply external compresses to the trauma area, which can be used to treat redness, swelling, pain and other diseases. It is important to note that the use of traditional Chinese medicine after knee surgery, try to choose after the removal of stitches or wound healing, to avoid drug-induced inflammation of the wound. Patients who are allergic to the components of the drug are prohibited to prevent breathing difficulties, skin itching and other uncomfortable symptoms. Patients after knee surgery can use Chinese medicine external application, it is recommended that patients go to the hospital to consult a professional doctor, under the guidance of the doctor to use medication, not unauthorized use of medication.