Coriander is poisonous and not recommended to drink, mainly decoction-based. The main effects of coriander in water are expectorant, cough, diarrhea and drink (through the method of diarrhea discharged from the body of water and dampness), the specific effects are as follows: 1. expectorant cough: coriander can expectorate cough, prompting the discharge of phlegm, used in the treatment of cough and asthma, phlegm cough. 2. Laxative: Coriander has a strong laxative effect, can be used for the treatment of hanging drinks, branch drinks, bulging and distension, etc., mostly by the stagnation of water and drink in the two coils, chest and diaphragm, abdomen, etc., Coriander can help the water out of the liquid, alleviate the symptoms. Coriolus Versicolor is indicated for patients with water-dampness and phlegm-drink (pathological products formed as a result of impaired metabolism of water-liquid) in the body, and should be used with caution in patients with weak spleen and stomach. Its adverse effects are mainly caused by damage to the fluid, etc. Coriander is poisonous, so it is not recommended to make water for drinking. If there is a need for medication, it should be taken in accordance with the doctor’s instructions to avoid poisoning and other adverse reactions caused by private medication.