Colds and coughs can be treated through dietary therapy. For instance, you can stew pears with rock sugar or stew pears with Fritillaria and add some honey, both of which can help alleviate coughs. Additionally, if it's just a dry cough without phlegm, you can take an uncooked egg before going to bed at night, place it in a bowl, sprinkle a large spoonful of sugar on top without stirring, and steam it in a pot until cooked. Eating it hot, along with the soup and egg, can help relieve dry coughs. Also, it should be noted that using scallion whites and white radishes, boiled into a soup to drink like tea two to three times a day, can also be beneficial in alleviating coughs.