Objective: To observe the effects of external and internal combined therapy(EICT) on rats of hyperthyreosis model. Methods: All SD rats were randomly divided into six groups: Normal control group, Hyperthyreosis model group, western drugs group, Hyperthyreosis formula group, EICT group, Jiakangping ointment group. The rat models were constructed by drenching Youjiale, it was observer that the effects of combing hyperthyreosis formula being taken orally with Jiakangping ointment application on model rats. After 21 days, radio-immunity metho...