The way to reduce swelling after a child falls head: First, give appropriate cold compress treatment, cold compress can constrict blood vessels, reduce blood exudation, can reduce the exudation of tissue fluid, to achieve the purpose of swelling. Second, if the scalp hematoma is relatively large, you can also take appropriate treatment by means of pressure bandaging, which can effectively reduce the edema situation. Then again, we must pay attention to the changes in the intracranial condition. If the intracranial is relatively safe, the outside world does not need a special way, children have a strong recovery ability, and basically the swelling can be reduced in 7 days. If something is wrong inside the skull, it is important to focus on the inside of the skull and never lose sight of the other. If the hematoma of the scalp is relatively large and volatile, it can also be punctured and aspirated under strict aseptic operation, which will also have relatively good results, so it is all a series of ways that must be chosen according to the actual situation.