You can drink milk with the flu, but in moderation. Milk can be consumed normally during the course of influenza. The main components of milk are proteins and fats, which do not contain ingredients that can aggravate the disease. Therefore, even during the course of influenza, you can drink milk normally, and it can replenish protein and promote the recovery of immunity to fight against the influenza virus, so as to achieve a speedy recovery. However, it is necessary to pay attention to the right amount, because during the course of influenza, the digestive ability of the gastrointestinal tract decreases, and eating too much milk may increase the burden on the stomach and intestines. At the same time, if lactose intolerance exists, it may also lead to diarrhea and other symptoms, seriously affecting the recovery of the disease. So you can drink milk, but pay attention to the right amount, lactose intolerant people are not recommended to drink.