When a child’s hand is caught in a door, there may be bruising and edema of the tissues, skin cracks, fractures, etc., which can be treated with cold compresses and disinfection. Hand injuries can be complicated. If only soft tissue edema or bruising, no skin breaks and activity disorders, early cold compresses can be applied to reduce pain and tissue edema, if the pain is serious, you can take diclofenac sodium and other drugs to relieve pain. If there is skin or nail rupture damage, need to be cleaned and sutured and wound dressing, if necessary, surgical closure of the crack. If there is impaired movement of the finger, or severe pain, there may be fractures or joint injuries, need to be surgically repositioned or externally fixed repositioning, based on this can be combined with drugs such as celecoxib for pain relief. Due to the relative fragility of bones, children are not recommended to take care of themselves after their fingers are pinched by the door, and it is recommended to go to the hospital in time for medical treatment. The above medications should be used under the guidance of a clinician.