Yang deficiency patients are not recommended to drink water with wolfberry, before use, it is recommended to consult a professional physician or pharmacist. Wolfberry belongs to the yin tonic medicine, sweet in nature, flat in taste, attributed to the liver, kidney meridian, with nourishing the liver and kidney, benefit the essence of the eyes (tonic essence, promote the restoration of eyesight) efficacy, clinically commonly used in the treatment of Yin deficiency of the liver and kidneys (liver and kidney Yin deficiency), deficiency and essence loss caused by lumbar and knee aches and pains, vertigo, tinnitus, impotence and spermatorrhea, yellowish color (yellowish color without luster), eyesight fuzzy and unclear and other diseases. Lycium barbarum can also be used together with Zhi Mu and Maidong to treat coughs caused by yin deficiency. Note that it should be taken with caution by people with spleen deficiency and loose stools (thin, unformed feces). People with yang deficiency often have symptoms such as fear of cold, cold hands and feet, pale face, scanty stools and long, clear urine. Lycium barbarum is often used in clinical practice to treat Yin deficiency of the liver and kidney, so it is not recommended that patients with Yang deficiency take Lycium barbarum. Drugs in water to play a limited effect, can not replace the drug treatment, it is recommended that the discomfort in time to seek medical advice, in the Chinese medicine practitioner under the guidance of the identification of medication, do not blindly use their own medication.