Why does the child old mouth ulcer do

Children's body immune function is relatively low Children always show oral ulcers, there may be children's body immune function is relatively low, so caused, there may be genetic causes, there may also be vitamin or trace element deficiency caused, of course, if the children learn pressure is relatively large, it may also cause oral ulcers. Therefore, in order to treat oral ulcers, first of all, to improve the patient's immune function, to actively exercise the body to supplement nutrition, and then is to let the patient keep oral hygiene, can not let the patient picky food, what food should try to eat, but also appropriate relax mood, reasonable arrangement of learning tasks, so oral ulcers in terms of a certain therapeutic effect, if medication is needed, should be under the guidance of a doctor medication treatment.