Objective: To observe the clinical effect of external treatment on oral ulcers of spleen being trapped by cold and dampness type.
目的：观察外治法治疗寒湿困脾型口疮的临床疗效。
2
Therefore, its treatment principle is to harmonize liver and spleen, remove wind and dampness, clear heat and cold, and relieve swelling and pain.
由此提出“和肝脾，除风湿，平寒热，消肿痛”的治疗原则和进一步的研究方向。
3
Objective: to distinguish indicators for syndrome differentiation between cold-dampness due to spleen insufficiency in Taiyin disease and solid-fu due to intestine-heat in Yangming disease.