The effects of garlic water are mainly detoxification, insect repellent, dysentery, etc. Overdose of garlic water has the side effect of damaging the stomach and intestines. Garlic is a kind of Chinese herbal medicine, pungent and hot in nature, into the five organs, detoxification and remove filth. Garlic water has the efficacy of killing insects, stopping dysentery, reducing swelling and detoxification. It is the main treatment for carbuncle, swollen sores, ringworm itching, dysentery, diarrhea, consumption, tonic cough, hookworm, pinworm disease and other diseases. Because garlic is irritating, hot and pungent, should not be eaten, easy to damage the stomach and intestines. It should be noted that there are stomach problems, yin deficiency fire (deficiency of Yin essence in the body, the emergence of hyperactive fire), eye disease, throat, tongue, mouth and mouth swelling and pain should not be eaten. Garlic water as a single drug use efficacy role is limited, if the patient has a need for medication, it is recommended that under the guidance of a professional doctor with other drugs for application, so as to avoid improper use of drugs, resulting in adverse consequences.