The most effective way to relieve the symptoms of leg pain in children, considering that it is related to collision, growing pains, and calcium deficiency, is to treat the cause and relieve the symptoms. Such as sterilization, local hot compresses, medication and so on. 1. Collision: the child may accidentally collide with a hard object because of the leg, thus causing soft tissue contusion of the skin, so that there will be obvious symptoms of leg pain. In the case of obvious trauma, you can give disinfection treatment to prevent infection and wait for it to heal itself. 2. Growing pains: children’s leg pain may also be related to growing pains, at this time should be to reduce the movement, at the same time to take the hot towel hot compresses, is conducive to promote subcutaneous blood circulation, further improve the symptoms of pain. 3. Calcium deficiency: children’s leg pain may also be related to calcium deficiency factors, after diagnosis should cooperate with the doctor to supplement calcium treatment in a timely manner, commonly used drugs, including calcium carbonate, calcium lactate, and so on. Children’s leg pain may also have other reasons, so if necessary, you also need to cooperate with the doctor to do further examination to be clear, and do targeted treatment.