It can not only relieve exterior syndrome by sweating, but also relieve summer heat by eliminating dampness and neutralizing the middle energizer, and also promote lung qi to promote diuresis and reduce swelling. Its merits are similar to those of Herba Ephedrae, and its medicine is also strong. It is most suitable for treating yin cold, closing summer heat and geomantic edema, so it is known as "Xia Yue Ephedra". Treat acute gastroenteritis, abdominal pain, vomiting and diarrhea, summer, autumn and summer, headache and fever, aversion to cold and anhidrosis, cholera, edema, epistaxis and halitosis.