My finger was caught in the door and swollen. What should I do, apply some medicine?

The correct treatment of finger pinch injury is that finger hematoma and pain should be immediately wet compressed with cold towel or cold water bag to relieve pain and prevent hematoma from increasing. If the hematoma is getting bigger and bigger, you can use a bandage or cloth to slightly pressurize it, but you should pay attention to the dressing time not to exceed 1 hour, and always pay attention to the color of your fingertips. If you find that your fingers are purple and cold, you should immediately loosen the bandage or cloth. After 24 hours of injury, you can use a hot towel or hot water bottle to apply hot compress, but don't burn your fingers, 2 ~ 3 times a day, 15 ~ 20 minutes each time. Finally, raise the arm with gauze to reduce swelling and relieve pain. For those who have obvious bleeding and pain under their nails, you can use a burning needle to puncture several holes in their nails to let the blood flow out to relieve the pain. If there is a wound after the finger is pinched, it should be disinfected and bandaged locally. If the nail falls off or is suspected to be a phalanx fracture, you can go to the hospital for examination and treatment. Those with obvious pain can take oral painkillers three times a day, each time 1 tablet. The elderly, children or the infirm can take Xiaoyan tablets to prevent infection.