The patient’s thumb is swollen by the door with purple and pain, depending on the severity of the local injury, different treatment methods are often available clinically. First, if the patient’s thumb is pinched more serious, local accompanied by fracture formation. The finger will be accompanied by obvious swelling, pain, limited activity, finger deformity, it is recommended that the patient improve the local X-ray examination as soon as possible to clarify the condition of the fracture as soon as possible after the surgical treatment. After surgery, local analgesia, anti-infection, rehydration and edema treatment can be given, and most patients can often achieve better treatment results. Second, if the patient’s thumb is caught by the door is relatively light, and did not cause fracture, the local purple and pain symptoms are relatively mild. You can improve the local pain by applying local ice, promoting capillary constriction, combining infrared radiation, applying local topical application of Ruyi Jinhuang cream, and taking oral swelling and pain capsules, etc. Most patients can gradually improve the pain and purple color of the thumb after active treatment.