What you will learn from this Building Automation Systems article: 1  the efficiency and conveniences Building Automation Systems add to a building.  how Building Automation enhances energy savings and troubleshooting problems.
In most cases, the symptoms of a middle ear infection (otitis media) develop quickly and resolve in a few days. This is known as acute otitis media. The main symptoms include: earache. a high temperature (fever) being sick. a lack of energy. slight hearing loss â if the middle ear becomes filled with fluid, hearing loss may be a sign of glue ear, also known as otitis media with effusion.
Chronic otitis media is a recurrent infection of the middle ear and/or mastoid air cell tract in the presence of a tympanic membrane perforation. Symptoms commonly associated with chronic ear disease include hearing loss, otorrhea, aural fullness, otalgia, and occasionally true vertigo. Cholesteatoma, a keratinized mass in the middle ear or mastoid, may occur either as a primary lesion or secondary to tympanic membrane perforation.