Recurrent aphthous ulcer is the most common oral mucosal disease, but the pathology of recurrent aphthous ulcer is not definite, so there is not an effectual remedy to recurrent aphthous ulcer.

• 复发性口疮是最常见的口腔黏膜疾病,由于其病因尚不完全明确,因此临床无有效的治疗方法。