Baby mouth inside ulcers are common in the following cases: 1, herpes stomatitis, herpes is often yellowish-white, can be scattered in the distribution of the throat, gums, lip surface, etc., the pain is not very obvious, can be manifested as fever, conjunctivitis, most of the viral infections caused by the baby’s mental state is still okay, if necessary, given antipyretic and antiviral medication can be given, the course of the disease in about a week. 2, mouth ulcers, generally distributed in the distribution of the inner lip mucosa, pain is obvious, obvious refusal to eat, crying, salivation, can be applied locally rehabilitation new liquid while oral compound vitamin B tablets. Distributed in the inner lip mucosa, pain is obvious, obvious refusal to eat, crying, salivation, can be applied locally rehabilitation of new liquid, at the same time oral compound vitamin B tablets. If repeated ulcers, and often sick, poor immunity, to pay attention to the possibility of immune system diseases, if necessary, to the hospital.