Garlic boiled water in the case of symptomatic, on the cough can play a certain role in assisting the treatment, the specific effect of the patient’s own constitution and condition related, such as the need to take please under the guidance of a doctor, do not take medication without authorization. Garlic is pungent, warm, and belongs to the spleen, stomach and lungs. Garlic has the efficacy of detoxification and elimination of swelling, killing worms, stopping dysentery, and can be used to improve the tonic cough, carbuncle sores, scabies, consumption and other diseases. Its adverse reactions are not clear. Garlic should be used with caution for people with yin deficiency and fire (deficiency of yin essence in the body, hyperactive fire) and eye diseases, mouth and throat diseases; garlic is not recommended for people with gastric ulcer and duodenal ulcer or chronic gastritis. Garlic boiling water is not formulated and correctly decocted, so it can only have a certain auxiliary therapeutic effect on cough symptoms, and cannot replace its therapeutic effect as a drug into the Chinese medicine decoction. Moreover, due to the variability of individual constitution, some patients with cough may not have obvious effect of drinking garlic water. Therefore, patients need to combine their own situation, under the guidance of the doctor to take garlic water, do not take medication without authorization, in order to avoid damage to health. Cough patients taking garlic water, need to follow the doctor’s instructions for regular review, once the body abnormal discomfort, need to go to the regular hospital, identify the cause of the disease, receive treatment, not self-medication.