Milk is a food rich in protein, amino acids and trace elements, and it also contains a large amount of immunoglobulins, which fight against viruses and bacteria that enter the body. Can I drink milk when I have a cold and cough? The answer is absolutely yes, but it depends on whether the cough is with or without phlegm. However, if you have phlegm, you should pay attention to not putting sugar in the milk and try to make it lighter, you can mix it with a little water, because sweet milk can increase phlegm, so just pay a little attention to how you consume milk when you drink it.