According to Chinese medicine, impotence and premature ejaculation are mostly related to kidney deficiency, so Chinese herbs with kidney tonic effect such as Cistanchiakis, Liao Yang, Epimedium, Cordyceps sinensis, etc. can be soaked in water for drinking, which can be an auxiliary treatment for impotence and premature ejaculation. Drinking water may not necessarily have therapeutic effect due to limited release of active ingredients. Cistanchis and Cistanches have the effects of tonifying kidney yang, benefiting essence and blood, moistening the intestines and relaxing the bowels. They can be used for treating kidney yang deficiency (lack of yang energy in the kidneys), impotence and infertility due to deficiency of essence and blood, soreness of the waist and knees (a feeling of soreness and weakness at the waist and knees), and weakness of the tendons and bones. Epimedium has the function of tonifying kidney yang, strengthening muscles and bones, and dispelling wind-dampness. It is suitable for kidney yang deficiency (deficiency of yang qi in the kidneys), impotence and spermatorrhea, and impotence of muscles and bones. Cordyceps Sinensis is a common tonic drug that can tonify the kidney, benefit the lungs, stop bleeding and resolve phlegm. It can be used to improve symptoms of kidney deficiency, impotence, spermatorrhea and lumbar and knee pain. Caution should be exercised when taking it for a long time. The adverse effects of the above drugs are not clear. However, it should be noted that Chinese herbal medicines mainly work through decoction, and drinking them in water may affect their efficacy due to the limited release of active ingredients. If you experience any discomfort, you should seek proper medical attention to avoid any delay in treatment.