There is no fastest treatment for cough and runny nose in babies. Cough and runny nose may be related to acute upper respiratory tract infection or allergies, etc., can be relieved by general treatment, medication and so on. 1. Acute upper respiratory tract infection: mostly caused by viral infections, cough and runny nose symptoms, generally do not need special use of antiviral drugs. If combined with bacterial infection, should follow the doctor to use cefixime, amoxicillin and other antibacterial drugs. At the same time need to pay attention to rest, ventilation, drink more water. 2. Allergy: Allergy can also cause the baby cough and runny nose, need to stay away from allergens, if necessary, oral loratadine, cetirizine and other anti-allergy drugs. All of the above drugs need to be applied under the guidance of a physician, can not be used on their own, such as the baby’s cough and runny nose did not improve, or aggravated, timely to the hospital, to clarify the cause of the disease, targeted treatment.