Usage of Wolfberry: Decoction. Chinese medicine believes that the Chinese wolfberry taste sweet, sex flat, into the liver, kidney meridian, with nourishing the liver and kidney, benefit the function of bright eyes. Chinese wolfberry is first recorded in “Shennong Ben Cao Jing”. This product has the function of nourishing the liver and kidney, benefiting the essence and brightening the purpose. It is suitable for the deficiency of essence, soreness and weakness of waist and knees, blurred vision, dry eyes, dizziness and tinnitus, kidney deficiency and lumbago, spermatorrhea and premature ejaculation, impotence, and residual leaking after urination. If treating kidney deficiency and lumbago, impotence, spermatorrhea, it can be used with psyllium, raspberry, cuscuta, etc. If treating blurred vision and dry eyes caused by yin deficiency of the liver and kidney, it can be used with chrysanthemum, yam, and cornelian cherry. The adverse reactions and contraindications of Lycium barbarum are not clear. Drugs need to be used under the guidance of a doctor, not blindly.