A painful bruise on a fingertip caught in a door needs to be treated depending on the situation. If movable, the bruise range is limited, can be physical therapy or drug treatment. If the pain is more intense, you need to go to the hospital for diagnosis, if necessary, surgical treatment. 1. Physiotherapy: Ice compresses can be applied within 24 hours after the clip to relieve pain, and hot compresses with towels can be applied after 24 hours to speed up the dissipation of the bruises. 2. Medication: Diclofenac sodium ointment and other drugs can be used to promote local blood circulation, the use of medication should be under the guidance of a doctor. 3. Surgery: If the injury is serious and the hematoma is very large, the doctor may need to perform aseptic puncture to drain it. If it is accompanied by impaired mobility, it is necessary to complete the relevant examinations, take X-ray films, check whether there is bone damage, and perform internal fixation of fractures. It is recommended to consult a doctor in time and standardize the treatment under the guidance of a professional doctor to avoid delaying the condition.