You should never drink cola during a cold. Cola also has a certain amount of caffeine, which has a stimulating effect on people and is not conducive to rest and can easily lead to sleeplessness. You should rest more during the cold to promote recovery from the cold. The sugar content of Coke is particularly high, and foods containing particularly high sugar content and excessively sweet foods can easily stimulate the throat and cause throat discomfort, and even induce coughing and phlegm. Moreover, sweet foods also have the effect of producing phlegm, which can also aggravate coughing and phlegm. Sweeter foods can easily remain in the mouth, leading to infections and the growth of bacteria, which can also aggravate the symptoms of a cold at this time. Therefore, you should never drink cola, other foods with too much sugar, foods containing caffeine or drinks during the cold. It is better to drink fresh fruit juice during this period. Fresh fruit juice is rich in vitamin C and has a better taste, which can help the body to strengthen the body.