唐农教授根据《黄帝内经》重阳思想和郑钦安扶阳理论,认为老年复发性口腔溃疡多由阳虚导致,老年人阳气虚损,阴寒相对过盛,阴邪侵犯阳位,使原本的"内阳外阴"结构变为"内阴外阳",临床表现为"上热下寒,里寒外热"。因此,治疗应以扶阳为主,收敛在外之浮阳,温煦在里之阴寒,迎阳归舍,使异常的"内阴外阳"结构回归到"内阳外阴",以达阴阳和合、疾病自愈之目的。临证常据病情不同阶段选用桂枝汤、潜阳封髓丹、补益汤加减,疗效较好。列举验案一则以说明疗效。

Guided by the thought of yang in The Inner Canon of Huangdi and the strengthening yang theories of ZHENG Qin'an,Professor TANG Nong believes that recurrent oral ulcers in elderly patients are mostly caused by yang deficiency. For elderly patients,because their yang qi is deficient,the cold pathogen is relatively strong. The cold pathogen invades the position of yang,making the original "yang in the interior and yin in the exterior" structure transforms to "yin in the interior and yang in the exterior". The clinical characteristics often manifested as "heat in the upper and cold in the lower,cold in the interior and heat in the exterior". Therefore,strengthening yang is vital in the treatment,restraining the yang in the exterior and warmming the yin in the interior,so as to making yang come back to its original position and the abnormal "yin in the interior and yang in the exterior" structure returns to "yang in the interior and yin in the exterior". Then the body can reach a harmonious state of yin-yang balance and have self-healing capability. According to the different stages of the disease,Guizhi Decoction,Qianyang Fengsui Pill and Buyi Decoction are used in the treatment to get good effect. One proved case is listed to show the efficacy.