1, Radix Panacis Quinquefolii, Radix Astragali, and Fructus Lycii soak in water, which mainly plays the role of invigorating qi and nourishing yin. Panax quinquefolium is a medicine for invigorating qi and nourishing yin, and it also has the function of clearing heat and promoting fluid production. It is used for cough due to qi deficiency, blood in phlegm, dry mouth and throat, mental fatigue and fatigue.

2. Astragalus membranaceus is also a nourishing prescription, which can also tonify the lungs and strengthen the spleen, and is used for cough and asthma due to lung deficiency, as well as eating less, indigestion and diarrhea. In addition, Lycium barbarum is also a medicine for nourishing liver and kidney, which can be used for symptoms such as liver and kidney deficiency, thirst, dry mouth, dry throat and fatigue. Together, the three herbs have the functions of benefiting qi and nourishing yin, and can nourish liver and kidney.