Children with chronic sinusitis can receive the routine vaccine if their condition is stable, but if they are in the acute stage of the disease, the vaccination can be postponed, and you can consult the staff of the vaccination station for the judgment of the specific situation. Chronic sinusitis is a disease caused by chronic inflammatory lesions of the sinus mucosa, which can lead to nasal congestion and runny nose, olfactory dysfunction, rhinorrhea and other symptoms. Routine vaccines are those that citizens are required to receive in accordance with the relevant regulations, generally referred to as Category 1 vaccines. For children with chronic sinusitis, whether or not they can receive routine vaccines depends on their condition, and they can usually be vaccinated when their condition is stable. However, in the case of acute exacerbations or complications such as intracranial or intraorbital infections, the routine vaccination should be deferred and the disease itself should be treated systematically first. Children with chronic sinusitis should consult with the staff at the immunization station before receiving the routine vaccine to fully understand the severity of the disease, complications, and history of medication before deciding whether or not to receive the routine vaccine. After vaccination, the child should be kept under observation for thirty minutes and should not leave until there is no abnormality or discomfort.