You can drink lemon water during a cold. Lemon water is rich in vitamin C, which can enhance the body’s resistance against foreign cold viruses or bacteria, thus promoting recovery from a cold. If a mild cold occurs, drink more lemon water and you can recover on your own. If it is a more serious cold, using cold medicine and drinking lemon water at the same time can promote the healing of the cold and reduce the duration of the cold. This time lemon water is best to drink at night, the daytime supplement a lot of vitamin C, easy to oxidation, and easy to make the skin darker, drink at night is better. If the symptoms of cold are serious, you should also use cold medicine for treatment at this time, for example, you can use Aminogarax capsules, Vitamin C silver forsythia tablets or Sensitive Health to treat adults. For children, you can use cold and fever granules, pediatric black clove and fever granules, or pediatric aminophenol pseudomal dispersible tablets to treat cold and fever, which is very effective.