Children’s nasal congestion and dry cough may be caused by the immaturity of the respiratory system, generally no special treatment; it may also be caused by upper respiratory tract infection, allergic cough, etc., and more use of medication. 1. Immature development of the respiratory system: infants and young children, the nasal cavity is relatively short, narrow nasal passages, no nasal hair, the nasal mucosa is tender and rich in blood vessels, easy to be infected, infected mucosal swelling, so it is easy to cause nasal congestion triggered by a dry cough, generally do not need special treatment, daily life, parents should pay attention to the circulation of indoor air, but also can be placed in the humidifier to increase the humidity of the room. 2. Upper respiratory tract infection: generally caused by a variety of pathogens in the upper respiratory tract of acute infections. (1) General treatment: pay attention to rest, ventilate the room, drink more water. (2) Drug treatment: for viral infections, traditional Chinese medicine is often used, such as oseltamivir phosphate orally; for bacterial infections, appropriate antibiotics are used according to the pathogens, such as penicillin, cephalosporins and macrolides. 3. Allergic cough: mostly caused by dust, cold air and other reasons, medication is the main treatment for allergic cough, but also need to avoid allergy-inducing factors. Commonly used drugs include glucocorticosteroids, such as budesonide, beclomethasone propionate, etc.; antihistamines, such as loratadine and cetirizine. If children have symptoms of nasal congestion and dry cough, they should go to the hospital in time to get medical treatment and follow the doctor’s instructions after clarifying the cause of the disease. All of the above drugs should be used under the guidance of a doctor, avoid self-medication.