Taking expectorant drugs to expel dampness, expectorant drugs play a role, there may be diarrhea, increased urination and other phenomena, usually normal. After taking expectorant drugs, the drugs work to expel dampness through defecation. Therefore, depending on the patient’s condition and personal situation, some patients may have diarrhea problems after taking expectorant drugs. In addition, often heavy dampness patients are spleen deficiency, itself may have symptoms of diarrhea, the general use of medication can not immediately improve the symptoms of diarrhea, so there is no need to worry too much. However, if the dilatation is more serious or if you are not feeling well, you should consult a doctor in time to avoid adverse consequences. If you have a problem of heavy dampness, it is recommended to use medication under the guidance of a doctor’s diagnosis, do not blindly use drugs to expel dampness, in order to prevent aggravation of the condition.