2-month-old baby with dry cough, if the mental state is good, response, breastfeeding is good, and the adults at home have a history of colds, you can use interferon spray to spray the mouth and nose, 3 times a day, pay attention to observation. If the baby dry cough, response, breastfeeding is not good, weak cry, accompanied by foam in the mouth, to the hospital in a timely manner. Because of the baby’s age, the symptoms of many diseases are not typical, such as when there is pneumonia in small infants, the baby often does not appear to cough, will only have poor feeding and spit up foam manifestations, so we must seek medical attention in a timely manner. If you can’t get to the hospital in time, you can take cefixime granules orally while giving interferon spray in the mouth and nose, and it is better to go to the hospital.