It is better to drink milk during a cold. The protein content of milk is particularly high, and the body will produce antibodies when a cold occurs, and protein can instead promote the production of antibodies and replenish the amino acids lost in the body. The water content of milk is particularly high. Drinking more water can promote the discharge of toxins from the body and facilitate the recovery from a cold, so it is better to drink milk during a cold. Milk is particularly rich in tryptophan, which is especially important for improving sleep. After improving sleep, the patient can rest better, which can also promote the healing of cold. If you take cold medicine, it is better not to drink milk immediately, otherwise the ingredients in the medicine will be easily denatured with the protein, which will affect the absorption of milk and the effect of the medicine. Under normal circumstances, it is generally recommended to drink milk for two hours before taking the medicine is better.