Leek seeds, that is, dried leek seeds that we often eat. People also call it long trough, Qiyang trough, flat rapeseed and leek kernel. It can not only be used as seeds for sowing in the coming year, but also has good medicinal effect. Its nature is warm, sweet and pungent. Enter the liver and kidney meridians. Has the effects of invigorating spleen, regulating stomach, nourishing liver and kidney, warming waist and knees, strengthening yang, and fixing essence. It is often used to treat kidney-yang deficiency, unstable essence and qi, lumbago and leg pain, rheumatic bone pain, asthma, urinary tract infection, irregular menstruation, dysmenorrhea of women, etc. In the folk, people often fry leek seeds, soak them in white wine for a few days, and take a small cup to drink before going to bed to play a role in daily health care.