It has become a habit of modern people to overeat cold things because of the great change of life style.Cold and dampness attack middle jiao directly, spleen and stomach are the first to suffer. Cold and dampness obstruct the middle jiao, the qi movement of spleen and stomach is obstructed, and the yin and qi are damaged for a long time, which leads to blood stasis. Academician TONG Xiaolin proposed that in the clinical treatment of such diseases, we should not only trace the origin, grasp the initial factors of cold and dampness, but also promote blood circulation and remove blood stasis, and treat from blood stasis. According to the pathogenesis of the disease, Cassia twig, Poria cocos and Peach kernel are the basic prescription. In the prescription, Cassia twigs can turn qi into cold, Poria cocos can invigorate the spleen and promote diuresis, Peach kernel can promote blood circulation and eliminate silting-up.The commonly used clinical doses of Cassia twig and Peach kernel are 9-15 g, Poria cocos 9-30 g, all of which were safe and no adverse reactions were reported.