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.
Otitis media refers to inflammation of the middle ear. Acute otitis media occurs when a cold, allergy, or upper respiratory infection, and the presence of bacteria or viruses lead to the accumulation of pus and mucus behind the eardrum, blocking the Eustachian tube. This causes earache and swelling. When fluid forms in the middle ear, the condition is known as otitis media with effusion.. This occurs in a recovering ear infection or when one is about to occur. Fluid can remain in the ear for weeks to many months.