Children’s sneezing may be caused by environmental factors, colds, allergic rhinitis and other factors. 1. Environmental factors: Inhalation of cold air or frequent inhalation of irritating gases may lead to frequent sneezing, which is a kind of self-protection, and can be restored to normal after improving the environment. 2. Cold and flu: due to the low immunity of the child’s body, improper daily care may lead to viral attack, causing cold and flu, which will lead to the child’s old sneezing, which may also be accompanied by a runny nose, cough, fever and other symptoms. 3. Allergic rhinitis: usually related to allergic factors, such as frequent contact with pollen, animal dander and other allergy-prone substances, induced allergic rhinitis, which will lead to the child’s old sneezing, which may be accompanied by nasal itching, runny nose, nasal congestion and other symptoms. Children sneezing all the time and accompanied by other clinical symptoms, it is recommended to seek medical examination and treatment to avoid delay.