Chinese herbal medicines that can be used to assist in the treatment of left renal cyst include Bazheng San, Pianzi Lizhong Tang combined with Zhenwu Tang, Zhibai Di Huang Tang combined with Xiao Ji Drinking Zi, and so on. The specific medication should follow the doctor’s prescription. 1. Bazheng San: It can be used for kidney cysts identified as damp-heat impregnation of the kidney, manifesting as dysuria, edema of the limbs, burning pain in urine, lumbar and back pain, and weakness, etc. The treatment is based on the principle of clearing away heat and dissolving dampness, and can be treated with the addition or subtraction of Bazheng San. The contraindications of this formula are not clear. 2. Radix Rehmanniae Tong with Zhenwu Tang: it can be used for kidney cysts identified as spleen and kidney yang deficiency (deficiency of yang qi in spleen and kidney), manifesting as edema, pale face, fear of cold, lumbago and knee weakness, low or high urine output, etc. Treatment is based on tonifying the spleen and kidney, inducing diuresis to reduce edema, which can be treated by adding or subtracting Radix Rehmanniae Tong with Zhenwu Tang. The contraindications of the two drugs are not clear. 3. Zhi Bai Di Huang Tang with Xiao Ji Drink: It can be used for kidney cysts identified as kidney deficiency and fire, manifesting as blood in urine, yellow urine, dizziness, tinnitus, flushing, lumbar soreness and knee weakness, dry mouth and tongue, etc. The treatment is based on nourishing yin and lowering fire (nourishing the yin essence and lowering the fire) to cool the blood, and it can be treated with Zhi Bai Di Huang Tang with Xiao Ji Drink with additions and subtractions. If there is hemorrhagic drenching (blood in the urine accompanied by pain), blood in the urine for a long time with cold, or yin deficiency and fire, or qi deficiency should not use Xiao Ji Drinking Zi. The specific use of medication should be under the guidance of a physician, do not use medication without authorization, so as not to cause delay in the condition.