Local soft tissue injury or subcutaneous hemorrhage resulting in a mass due to a fall is not given cold compresses for more than 24 hours to help vasoconstriction and avoid aggravation of the local swelling. Hot compresses are given for more than 24 hours to help reduce swelling and pain. If the mass is getting bigger during this period, which proves that there is active bleeding, you need to send your child to the hospital for timely corrective treatment and take a CT film if necessary. The surface damage after the child’s fall is secondary, we need to observe the child for 72 hours to see if there is any obvious nausea, vomiting, drowsiness, irritability, pallor and convulsive episodes, but with such problems, there may be symptoms of cranial hemorrhage or concussion, so we need to take the child to the hospital in time and give the child a CT examination to see if there is intracranial The child should be taken to the hospital for a CT scan to check for intracranial hemorrhage or hematoma. After the diagnosis is clear, if there is brain damage, give the child the appropriate treatment.