Children with runny nose and dry cough is usually due to allergies, viruses, bacterial infections, you can choose to take oral anti-allergy (cetirizine), antiviral (antiviral oral solution), antibacterial drugs (cefaclor dry suspension). 1. Allergy: Due to respiratory allergy caused by food or dust and other substances, resulting in children with a runny nose and dry cough, you can choose to take antihistamines, such as cetirizine hydrochloride drops, to relieve the symptoms of a runny nose and dry cough. 2. Viral infections: As viruses invade and cause respiratory tract infections, causing children to have a runny nose and dry cough, you can choose antiviral drugs, such as acyclovir tablets, antiviral oral solution, etc., which can be used to treat nasal congestion, runny nose and cough by inhibiting viral replication. 3. Bacterial infections: children due to bacterial infections leading to respiratory tract infections, symptoms of runny nose, dry cough, you can choose antibacterial drugs such as cefaclor dry suspension, cefdinir, etc., through the killing and inhibition of the human body pathogenic bacteria, so that the infection is under control, to alleviate the symptoms of a runny nose, dry cough. If a child has a runny nose, dry cough symptoms, continue to get no relief, should promptly seek medical attention. The above medications should be used under the supervision of a doctor.