Sinusitis in children johns hopkins medicine. It's likely your child has sinusitis if he has some combination of these symptoms: • nasal congestion that persists for ten days or more • sinusitis old 8 year thick yellow or green nasal discharge • a cough during the day that gets worse at night. It means 3 or more episodes of acute sinusitis in a year. the sinuses are air-filled spaces (cavities) near the nose. they are lined with mucous membranes. there are 4 different sinuses: ethmoid sinus. located around the bridge of the nose. this sinus is present at birth, and continues to grow. maxillary sinus. See full list on mayoclinic. org. Chronic Sinusitis Symptoms And Causes Mayo Clinic Natural cures for sinus infection in children. Common signs and symptoms of chronic sinusitis include: 1. nasal inflammation 2. thick, discolored discharge from the nose 3. drainage down the back of the throat (postnasal drainage) 4. nasal obstruction or congestion, causing difficulty breathing thro...