Generally speaking, the reason why children still have headaches after recovering from encephalitis is that the damage to brain nerve cells has not been completely repaired, because although children’s encephalitis has improved and there are no acute manifestations such as fever, convulsions and vomiting, it takes a long time for brain nerve cells to be repaired, which can cause prolonged headaches in children. In this case, children can be given drugs to nourish the brain nerves, such as brain protein hydrolysate, which can nourish the brain nerves and relieve the prolonged headache caused by encephalitis, and the safety is relatively good.