There are 3 types of sinusitis: short-term (acute). symptoms of this type of infection last less than 12 weeks and get better with the correct treatment. long-term (chronic). these symptoms last longer than 12 weeks. recurrent. this means the infection comes back again and again. it means tiga or more episodes of acute sinusitis in a year. Sinusitis means infection and inflammation of the sinus cavities. does your child need antibiotics for a sinus infection? 10 days or more and not improving; symptoms (as above) with fever over 102 degrees lasting for tiga-4 days in a. baby sinusitis month old 3 Sinusitis is an infection of the sinuses near the nose. there are three types of sinusitis: with previous infections that were inadequately treated, and lasts longer than three months the symptoms of sinusitis depend on the ag. Chronic sinusitis means that symptoms have been present for greater than 90 days, or 3 months. unlike acute sinusitis, chronic sinusitis is usually not simply driven...