Coke does not have a curing effect on coughs. On the contrary, it is not recommended to drink Coke during a cough. Firstly, the sugar content in cola is relatively high, and drinks with higher sugar content tend to produce phlegm, which will instead aggravate the symptoms of coughing. Secondly, sugar tends to cause residues in the mouth, which in turn can aggravate bacterial infections, possibly aggravating respiratory infections and leading to a worsening cough. In addition, cola contains more carbon dioxide, and with more carbon dioxide, the irritation is also stronger, which also tends to irritate the mucous membrane of the respiratory tract, thus causing coughing to occur. Therefore, it is not recommended to drink cola during coughing. It is recommended to drink plain water or fruit juice. Fresh fruit juice has more water content and can moisten the airways; it is also rich in vitamins, especially vitamin C, which can help the body to defend itself against foreign viruses or bacteria, promote the healing of diseases and strengthen the body’s resistance. Therefore, it is recommended to drink some fresh fruit juice, especially pear juice, during cough.