Huang Quai Capsule is a kind of Chinese medicine, its function is mainly to clear dampness and heat, detoxify and eliminate swelling. In clinical practice, Huang Quai Capsules can be used to treat patients with chronic nephritis who exhibit swelling, lumbar acidity, proteinuria, hematuria and yellow tongue coating. The recommended dose is 5 capsules 3 times a day for a course of treatment of about 8 weeks. The main component of the capsule is yellow marshmallow flower, it is recommended that patients should pay attention to avoid eating spicy, greasy food during the medication, pay attention to not drinking alcohol during the medication.