It is generally not suitable for cough patients to eat flower nails, which are crustaceans and are generally hairy, so it is not recommended to eat them when you have a cough, as this may aggravate or delay the cough. When you have a cough, you should pay attention to eating foods that are digestible and nutritious, such as lean vegetable porridge, tomato and egg noodles, and egg custard with vegetable noodles. When you have a cough, you can eat a moderate amount of vegetables and fruits rich in vitamin C, such as apples, bananas, oranges, or spinach, cabbage, celery, rape, lettuce leaves, etc. When you have a cough, it is especially important not to eat spicy, stimulating, greasy or cold foods, and not to overeat. When you have a cough, you should also take rest and drink plenty of water. Older people should be careful to drink small amounts of water several times and not too much water at once to avoid heart failure.