At the beginning of the cold, it is easy to cause symptoms of runny nose, sneezing and fever, the initial runny nose is mainly clear, after about 1-2 days, the runny nose is easy to become sticky, white and foamy, most of them are caused by viral infection or wind-cold cold, you can take oral wind-cold cold granules, you can also use the appropriate amount of antiviral drugs to actively treat, you need to drink more water, pay attention to rest. Pay attention to a light diet and rest. In this case, antibiotics are not usually considered, and there will be improvement in about 4-5 days. If the nasal discharge becomes more and more yellow and there is a fever, it may also be caused by a bacterial infection.