Pediatric sinusitis is more common and its etiology, symptoms, diagnosis and treatment are different from those of adults. Repeated upper respiratory infections cause persistent congestion and edema of the mucous membranes of the nasal cavity and sinuses, and sinus secretions are not easily discharged, leading to sinusitis. Children have relatively large sinus openings, and bacteria or viruses are more likely to invade the sinuses through the sinus openings leading to inflammation, and as immune function increases, sinusitis occurs less and less often. Although the causes of pediatric sinusitis are similar to those of adults, the medication is different from that of adults, and it is best to use children-specific drugs: 1. Apply sufficient antibiotics in a timely manner, and use intravenous administration for those with severe symptoms. Local application of nasal mucosal constrictors can also be used to improve ventilation. 2.Treat with Chinese herbal medicines to clear heat and detoxify the nasal cavity for nasal irrigation and use nasal spray hormone. 3.Replacement therapy can be used. When children have sinusitis, they will have symptoms such as nasal blockage, pus, headache, etc. Serious cases can also cause complications in the cranium, eyes and lungs, so once you suspect sinusitis, you should go to the pediatric otorhinolaryngology treatment in a regular hospital and do not use adult drugs without permission to avoid adverse reactions. Usually you should prevent colds and actively treat acute sinusitis to avoid developing into chronic.