There is no clear information that garlic (boiled) water has the effect of relieving cough. Garlic belongs to a kind of Chinese medicine with the same source of food and medicine, for the lily onion plant garlic bulb, with detoxification of swelling, kill insects, stop diarrhea, move Qi stagnation, warm the stomach and strengthen the spleen effect. For carbuncle boils, ringworm, dysentery, diarrhea, hookworm and other diseases have a therapeutic effect. Clinical garlic for scabies itching, available garlic slices external rubbing or mashed external compresses; garlic has a good dysentery, diarrhea, dysentery, can be used alone, raw or boiled. If the garlic vinegar dip often eat, can strengthen the spleen and stomach, enhance appetite, treatment of epigastric and abdominal cold pain (stomach and abdomen feel cold pain), diet or loss of appetite. The adverse effects and contraindications of garlic are not yet clear. Caution should be taken during the medication: avoid using it if you are suffering from yin deficiency (deficiency of yin and essence in the body, resulting in hyperactive fire); avoid using it if you have liver-heat or eye diseases. If there is any discomfort, it is recommended to consult a traditional Chinese medicine practitioner for standardized treatment under the guidance of diagnosis to avoid delaying the condition.