The baby’s cough and runny nose and tongue coating is considered to be caused by colds, you can carry out physical conditioning or medication to alleviate the symptoms. 1. Physical conditioning, usually need to pay more attention to the baby’s health care, let the baby rest, drink more warm water, and do not carry out strenuous exercise, do not go to crowded places, so as not to lead to aggravation of the symptoms. Eat a light diet, do not eat spicy stimulating food. 2. medication, if the general conditioning does not relieve, you can use medication under the guidance of a doctor, such as pediatric cold granules. If there is a bacterial infection, you can follow the doctor’s instructions to take amoxicillin and other antibiotic treatment, so as to alleviate the symptoms. There may be other reasons for your baby’s cough and runny nose and white tongue, so we recommend that you seek medical attention and treatment in a timely manner, and follow your doctor’s instructions for medication.