Tangerine red and astragalus in water has the efficacy of drying dampness and resolving phlegm (removing phlegm in the body by drying dampness), inducing diuresis and subduing swelling (facilitating urination and eliminating edema), etc., and should be used under the guidance of a physician. Tangerine red is pungent, bitter and warm in nature, with the effect of moving qi and relieving phlegm, drying dampness and resolving phlegm, it can be used to treat damp phlegm and cold phlegm, cough and phlegm, gastric and epigastric congestion and other diseases. The adverse effects of tangerine red are not clear; its contraindication is yin deficiency and dry cough and prolonged cough with qi deficiency should be taken with caution. Astragalus is sweet in taste and slightly warm in nature, with the efficacy of fixing the surface to stop sweating (stopping sweating by consolidating the muscle surface), inducing diuresis and eliminating edema, etc. It can be mainly used to treat conditions such as edema, diarrhea and prolapse due to spleen deficiency, as well as yellowish complexion due to blood deficiency (yellowish color with no luster). The adverse effects of astragalus are unclear; note that it is contraindicated for those with yin deficiency and hyperactivity of yang (deficiency of yin fluid and hyperactivity of yang qi), superficial realities and evils, stagnation of food accumulation (food that is poorly digested and stops accumulating in the stomach), and stagnation of liver depression and qi stagnation (poor transportation of qi and blood in the liver, and depression of emotions and moods). It should also be noted that the efficacy of herbal infusions is limited and cannot be used as a substitute for medication. If you need to use the above medicines, you need to standardize the use under the guidance of Chinese medicine practitioners to avoid adverse consequences.