Coriandrum sativum has the effects of diarrhea and expulsion of water-dampness from the body by means of diarrhea, and is used externally to kill worms and heal sores. It is also used in the treatment of scabies, canker sores, carbuncles, frostbite, and so on. In the treatment of edema and fullness, chest and abdominal fluid, phlegm and drink accumulation, often with Gan Sui, Jing Daji must be used. In the treatment of water stagnation, constipation, urinary constipation, can be used with petunia seeds, rhubarb, green peels and so on. For the treatment of head sores, ringworm and carbuncles, this drug can be used alone in the form of powder, or with Xionghuang in the form of pig fat. When treating with this drug, it is important to do so under the guidance of a doctor. This drug is a strong downward water-eliminating drug, has a certain degree of toxicity, do not blindly use the drug. In addition, this drug should not be used with licorice, pregnant women and the weak are prohibited. You should not eat cold, raw and cold, spicy, stimulating food during the period of using the medicine.