Most adults can drink milk when coughing, but those who are allergic to milk are contraindicated. Milk protein content is relatively rich, has a high nutritional value, appropriate drinking milk can play a role in strengthening the role of nutrition. For most of the cough patients will not affect the recovery of the disease, and even appropriate intake of milk on the health is a certain help. But adults cough has a special cause called cough variant asthma. Cough variant asthma is closely related to allergies, and if the patient is allergic to milk, the intake of milk will aggravate the patient’s coughing symptoms. Milk is not recommended for these special cases. To summarize, if you are not allergic to milk when coughing, you can drink milk in general.