Taking leek seeds, usually about 2-4 weeks to have some effect, but the specific time of effect will also vary from person to person. Leek seeds are warm in nature and have the effect of warming and tonifying the kidney and yang, which can be used for the treatment of kidney and yang insufficiency caused by urinary incontinence, oedema, lumbar and knee cold pain, fear of cold limbs and impotence and premature ejaculation and other evidence. However, if single treatment with leek seeds, the effect will be slower, at least 2-4 weeks. If the condition is serious, it will take longer. If necessary, patients can cooperate with other medicines that tonify kidney yang, such as Radix Rehmanniae Praeparata, Rhizoma Dioscoreae, Cornus Officinalis, Fructus Xianmao, Radix et Rhizoma Dioscoreae, and Bacopa Monnieri, etc., and the effect may be faster. In addition, patients need to pay attention when taking, leek seeds should not be consumed in large quantities over a long period of time, because it may lead to the human body to appear hyper yang, and may even damage the function of the liver and kidneys. At the same time, because leek seeds are warm food, so people with yin deficiency and fire should not be consumed.