口疮是指以口腔内黏膜、舌、唇、齿龈、上腭等处发生溃疡为特征的一种常见的口腔疾患,任何年龄均可发生,以2～4岁的小儿最为多见,可单独发生,也可伴发于其他疾病之中。一般来说,经过精心的治疗,小儿口疮很快就会痊愈,如果延误治疗或者小儿本身体质虚弱,则可导致重症或者迁延不愈。主要症状⒈口腔内出现黄白色的溃疡面,大小不等,甚至满口 Aphtha refers to a common oral disorder characterized by ulcers in the oral mucosa, tongue, lips, gums, palate, etc., occurring at any age, most commonly seen in children 2-4 years of age, and can occur alone , Can also be associated with other diseases. In general, after careful treatment, pediatric aphthous ulcers will soon be healed, if the delay in treatment or physical weakness in children, can lead to severe or delayed healing. The main symptoms ⒈ oral yellow and white ulcers appear, sizes, and even full mouth