Snake bed seed has a small poison, is generally not recommended to make water to drink. Snake bed seed belongs to the kidney meridian, flavor pungent, bitter, warm nature; there is a small poison. It has the effects and functions of drying dampness, dispelling wind, killing insects and relieving itching, warming the kidney and strengthening yang (warming and tonifying yang qi in the kidney). It is used for impotence, uterine cold, cold and dampness under the belt, dampness paralysis and lumbago; external treatment of vulvar eczema, women’s vaginal itching; trichomonas vaginitis. The adverse reactions of snakebeds are not clear, and it is contraindicated for those who have dampness and heat in the lower jiao, or who have insufficient kidney yin, or whose jingguan is not solid (the kidneys are deficient, and the kidneys can not hide the sperm). The active ingredients of Chinese medicine in water are limited and generally do not achieve the therapeutic effect. Moreover, snakebeds have a small toxicity, so you should consult a professional physician or pharmacist before brewing water to drink. Individual physique, the length of time of the condition, the stage of the disease, the effect of the medication are different, how long to see the effect is impossible to judge. It is recommended to consult a doctor in a timely manner, under the guidance of the doctor to identify the evidence and then use medication. It is not advisable to self-medication, so as not to delay the condition.