Children always sigh after upper respiratory tract infection, common causes, including respiratory tract inflammation, myocarditis, mental stress and other causes, treatment methods include drug treatment, mental comfort treatment. 1. Respiratory tract infection: respiratory tract inflammation can lead to shortness of breath and sighing, such as pharyngitis, bronchitis, etc., at this time you can take anti-inflammatory drugs under the guidance of the doctor, such as amoxicillin, cephalosporins. 2. Myocarditis: due to viral infection caused by myocarditis, myocardial damage, etc., can be taken under the guidance of a doctor to nutritional myocardial drugs, including sodium fructose diphosphate oral solution, coenzyme Q10. 3. Mental stress: small children due to their own breathing is not comfortable, excessive tension or anxiety can also easily lead to sighing, at this time we must comfort the child, encourage the child to cooperate with the doctor’s treatment, to relieve the child’s nervousness and anxiety, which can also relieve the symptoms of sighing. The causes of children’s upper respiratory tract infections always sigh more, in addition to the above causes, may also be allergic rhinitis, acute gastrointestinal inflammation and other elements caused, it is recommended to take the child to a professional pediatric hospital, and relevant examinations, through the diagnosis results of timely treatment.