The symptoms of bruising, swelling and pain after the finger is caught in the door are mainly caused by the stimulation of external force, which leads to subcutaneous soft tissue injury and capillary bleeding of the finger. First of all, the emergency treatment should be done by means of local external compresses, mainly including cold and hot compresses. Within 48 hours after the injury, a local cold compress should be applied to the injured area to promote vasoconstriction and relieve the discomfort of bruising, swelling, and pain. After 48 hours, the hot compress can be replaced to promote blood circulation and eliminate blood stasis. If the patient is not effective in the case of external compresses, the following treatment should be taken: 1, drug therapy: when the patient’s finger stasis, swelling and pain are serious, non-steroidal drugs such as ibuprofen and indomethacin can be used as prescribed by the doctor to relieve pain, and anti-inflammatory drugs such as cephalosporins, penicillin drugs such as amoxicillin or erythromycin antibiotics to prevent and control infection; 2, physical therapy: microwave therapy is common, usually after drug therapy, the patient If the pain, bruising, swelling and other conditions of the finger are not completely relieved, or if there is persistent aggravation, microwave therapy can be carried out under the guidance of a doctor to promote blood circulation in the injured area and to relieve pain and swelling; 3, fixation therapy: if the patient’s finger is not only red, swollen, bruised, painful and other discomforts, but also accompanied by joint deformity, restricted movement and other manifestations, it is recommended to improve the relevant examination to determine whether there is a fracture. If there is a fracture, in addition to drug treatment, bandage correction, splinting and other ways to promote the reset of the fracture site; 4, surgery: for patients with more serious finger fractures, should be incision and internal fixation surgery treatment, that is, through the metal internal fixation, the fracture site to be fixed, so as to promote recovery.