Garlic water can assist in treating the symptoms of cough caused by bronchitis. From the perspective of Chinese medicine, garlic water enters the spleen, stomach, and lung meridians to provide relief from cough and bronchitis symptoms. In addition, garlic itself contains allicin, which has a natural germ-killing effect and a large number of natural antibacterial factors. It can be taken by boiling garlic with rock sugar; or by chopping up peel and garlic and decocting them in water; or by putting brown sugar, vinegar and garlic in a clean jar and soaking them for 1-2 weeks before taking them, all of which can treat the symptoms and purpose of bronchitis cough.