1 Clearing heat and improving eyesight For people with symptoms such as red eyes, swelling and pain, tears and photophobia, it is mostly caused by rising liver fire or wind-heat disturbing the head. Cassia seed can not only clear liver and gallbladder depression, but also dispel wind and heat, so for people with red eyes, cassia seed and Astragalus can be soaked in water to drink.

2 Runchang laxative Cassia seed is sweet, bitter, salty and slightly cold, which can effectively reduce the body heat after eating. Therefore, for some constipation symptoms caused by excessive internal heat, some cassia seed and astragalus root can be soaked in water appropriately, which can play a role in relaxing bowels.

3 Regulating blood pressure Astragalus can dilate tubular blood vessels and renal blood vessels, dilate peripheral blood vessels of the whole body and promote skin circulation. The water immersion, fermentation-water immersion and alcohol immersion of Semen Cassiae also have certain blood pressure lowering effects, so people with hypertension can soak in water with Semen Cassiae and Radix Astragali.

4 Anti-inflammatory and bacteriostatic The alcohol extract of Cassia seed has inhibitory effect on staphylococcus, diphtheria, typhoid, paratyphoid and Escherichia coli. Astragalus membranaceus has inhibitory effects on Shigella dysenteriae, anthrax, hemolytic streptococcus A, hemolytic streptococcus B, diphtheria, pneumococcus, Staphylococcus aureus, Staphylococcus aureus and Bacillus subtilis. Therefore, cassia seed and astragalus root can play an anti-inflammatory and bacteriostatic role if soaked in water.