Senna is usually best drunk for a few days

Senna for attacking the lower part of the drug, over-service is easy to hurt the vital energy, taking time to “get diarrhea” to the extent, not to “a few days” to the extent. You can try to take it once, and stop taking it when the symptoms are relieved.
Senna is cold in nature, sweet and bitter in taste, and enters the large intestine meridian. This product has the basic effect of diarrhea, laxative and diuretic. It can be used to treat constipation, ascites and swelling. Senna should be taken in order to get down to the degree of stool, can not be over-served, so as not to damage the positive qi, and even cause defecation. Therefore, it can be taken once, and if the stool is passed, the medicine can be stopped.
The adverse reactions and contraindications of Senna are not clear. Pregnant women, women breastfeeding, menstruation should be used with caution. If you need to use senna to cure your illness, it is recommended to use it under the guidance of a professional doctor.