If your finger is caught in a door, you can relieve the pain through general treatment, physical therapy, medication, surgery and other methods. 1. General treatment: After the injury, we should pay attention to protect the affected limb, reduce the stimulation of the affected area to prevent further aggravation of swelling and pain. You can also elevate the affected limb to help promote blood flow and relieve swelling and pain. 2. Physical therapy: after the injury, 72h for cold compresses, cold compresses can constrict blood vessels, reduce the inflammatory response and relieve swelling and pain. 72h after the hot compresses, relieve pain. 3. Medication: Commonly used non-steroidal anti-inflammatory analgesic drugs, such as ibuprofen, diclofenac sodium and other treatments, can play an anti-inflammatory role in relieving pain. 4. Surgical treatment: If the crush injury is more serious, it may cause fracture and other injuries, which will cause severe pain and restriction of activities. If the fracture is not significantly displaced, it can be immobilized with plaster or splint. If the fracture is severely displaced, surgical incision and fixation treatment is required. After the finger is pinched by the door, if the pain is severe or accompanied by obvious deformity, you should go to the hospital in time for further examination and treatment, the above drugs need to be applied under the guidance of a physician.