Radish and pear water is a food that provides nutrients to the body and has no pharmacological effect to cure cough. Cough can be seen in a variety of diseases, such as infection, asthma, lung cancer. Cough should be identified and targeted treatment. Cough is due to a variety of causes stimulate the respiratory mucosa caused by the unconditional reflex, the cause can be due to respiratory tract infections (such as viruses, bacteria, mycoplasma, fungi and other pathogens infection), allergic reactions (such as cough variant asthma), respiratory foreign body, respiratory tract tumors and other causes. It can also be seen in other systemic diseases, such as gastroesophageal reflux, cardiac insufficiency and so on. Radish and pear water it is just ordinary food to provide nutrition for the human body. There is no role in killing various pathogens (such as viruses, bacteria, mycoplasma, fungi, etc.), and there is no inhibition of tumors and other efficacy, and there is no purely antitussive efficacy, so turnip and pear water does not have the role of treating cough. If you have a cough, you need to go to the hospital to actively seek medical attention to identify the cause of cough symptomatic treatment.