Drinking expectorant herbs does not have much effect on reducing body weight, because expectorant herbs have the effect of expelling dampness, but do not have the effect of losing weight. According to the basic theory of traditional Chinese medicine, fat people have more phlegm-dampness, spleen main transportation (spleen has the function of digesting food, absorbing food essence and water and transferring it to the whole body), water-dampness, kidney main water, lungs through the regulation of the waterway, lungs, spleen and kidney malfunction will cause water-dampness to stop gathering in the body, and it can’t be discharged from the body normally. Can drink some of the dampness Chinese medicine, can regulate the function of the lungs, spleen and kidneys to run normally, to help the dampness out of the body. For heavy weight people, need to control diet and moderate exercise, with expectorant Chinese medicine, can have a certain effect on weight loss, single use of expectorant Chinese medicine does not have much effect. It should be noted that the elimination of dampness Chinese medicine should be used by a professional physician after diagnosis and treatment, and should not be consumed blindly, so as not to cause adverse effects.