White foxglove root can treat kidney disease. It has the effect of clearing heat and generating fluid, cooling blood and stopping bleeding, diuretic and laxative. It mainly treats patients with spleen and kidney deficiency, dampness and heat, and hematuria. The combination of Astragalus, Radix Codonopsis, Radix et Rhizoma Polygonati and other kidney and spleen tonifying drugs can clear heat, cool blood and stop hematuria; Radix et Rhizoma Polygonati can also treat patients with acute nephritis with hematuria, decoction of 50-100mg alone, hematuria disappears, edema subsides after a week of medication, and has a hypotensive effect; it is suitable for chronic nephritis with yin deficiency, combined with raw earth, dry lotus grass and other yin tonifying drugs to increase the effect of cooling blood and stopping hematuria. The specific medication should be combined with clinical practice, subject to the guidance of the doctor’s interview.