Eating too much sweet food can easily produce phlegm, which can aggravate the cough or cause it to linger. Especially for coughs caused by wind and cold, or coughs caused by phlegm, it is not recommended that patients eat iced sugar gourd because it is cold and not suitable for patients with coughs caused by wind and cold. When you have a cough, you should pay attention to digestible and nutritious foods, such as lean vegetable porridge, tomato and egg noodles, egg custard, vegetable noodles, etc. In particular, you should not eat spicy, stimulating, cold and greasy foods, such as spicy hotpot, spicy pot, food fresh from the refrigerator or ice cream, fatty meat, fried chicken, etc. You should not overeat. When coughing occurs, emphasize the need to rest and drink more water. For the elderly, it is important to drink small amounts of water several times and not too much water at once to avoid heart failure.