2. Soaking American ginseng and astragalus together can make the drug effect more concentrated, help everyone nourish yin and tonify the kidney, and also help everyone improve their immunity. After soaking in water together, the taste may be strange, so it is not as good as soaking in water separately. Although Radix Astragali, Fructus Lycii and Radix Panacis Quinquefolii can be soaked in water together, it is necessary to control the daily drinking amount, and not to drink too much at one time.