复发性阿弗它溃疡(RAU)是一种常见的口腔病变。诊断的确立需根据病史、临床表现和复发的方式。病因还不完全清楚。治疗仍为对症,不能根治。有很多种局部及全身用药可用于治疗RAU。一般说来,它们可以缩短病程和减轻急性症状,但几乎不能减少复发次数。生胃酮(Carbenoxolone)是由甘草次酸人工合成的药物。甘草次酸是甘草根中天然存在的甘草皂甙的一种配基。古代中国医药已知甘草的应用。现代的顺势疗法也用它治 Recurrent aphthous ulcer (RAU) is a common oral disease. Diagnosis should be based on the history, clinical manifestations and the way of recurrence. The cause is not fully understood. Treatment is still symptomatic, can not cure. There are many topical and systemic treatments available for the treatment of RAU. In general, they reduce the duration of the disease and reduce acute symptoms, but rarely reduce the number of relapses. Carbenoxolone is a synthetic drug made from glycyrrhetic acid. Glycyrrhetinic acid is a ligand of glycyrrhizin, a naturally occurring glycyrrhiza root. Ancient Chinese medicine known licorice application. Modern homeopathy is also used to treat it