Traditional Chinese medicine believes that fat people have more phlegm and dampness, and the general fat people have problems in spleen transport and transformation, which leads to Shui Gu's stagnation into phlegm and dampness, which in turn leads to obesity; Therefore, it is necessary to reduce fat and eliminate dampness first, and Chinese medicine hot compress is an external treatment for internal injuries by resolving phlegm and eliminating dampness in Chinese medicine.