In the United States and other developed countries, the incidence of<unk>  is quite low, around 0.004%, although it is higher in developing countries. The condition most commonly affects children aged from two to thirteen months, when ear infections most commonly occur. Males and females are equally affected.
Mastoiditis
Tympanites
Sinusitis
Rhinosinusitis
Aerosinusitis
Nasal vestibulitis
Vestibular adenitis
Labyrinthitis