The main complications of sinusitis are: 1. Ocular complications. Such as lacrimal sacculitis, conjunctivitis, blepharitis and keratitis; orbital periostitis and subperiosteal abscess; orbital cellulitis; retrobulbar optic neuritis, etc.
2. Cranial osteomyelitis. Such as frontal osteomyelitis, maxillary osteomyelitis, sieve osteomyelitis, butterfly osteomyelitis, etc.
3, intracranial complications. Such as epidural abscess, rhinogenic meningitis, subdural abscess, cavernous sinus thromboembolism, rhinogenic abscess, etc.
4. Middle ear complications. Such as acute and chronic catarrhal otitis media, acute and chronic suppurative otitis media, etc.
5.Respiratory complications. Such as acute and chronic pharyngitis, acute and chronic laryngitis, bronchitis, bronchiectasis, and posterior pharyngeal wall abscess in young children.
6, gastrointestinal complications. Mainly nasal secretions down the throat, can cause gastrointestinal dysfunction and symptoms of indigestion.
7.Nasal-derived focal infection. It can cause acute rheumatic fever, chorea, infectious arthritis, bursitis, pericarditis, myocarditis, cholecystitis, optic neuritis, retinitis, iritis, nephritis, pyelitis, myelitis, osteomyelitis, etc.