a. Ear Infection
The ear is divided in three parts. The outer ear (the visible part and the canal leading to the eardrum). The middle ear (the eardrum and tiny bones that amplify sound.) The inner ear is where sounds are translated to electrical impulses and sent to the brain. Any of these three parts can become infected by bacteria, fungi or viruses. You may recognize these names: Otitis externa,Otitis media, Serous otitis media, Infectious myringitis, acute mastoiditis, Vestibular neuronitis, Herpes zoster of the ear. Well, bacteria like to grow in dark, warm, wet places, so a fluid-filled ear becomes the excellent environment. As the infection worsens not only pain but also a foul odor emanating from the ear can be present.
Cholesteatoma is a growth that occurs in an abnormal location (the skin of the eardrum) due to repeated infection. If the cholesteatoma enlarges , can ruin the delicate bones around the middle ear. At the beginning the ear may drain, sometimes with a foul odor. As the cholesteatoma pouch or sac increases in size, it create a full feeling or pressure in the ear, along with hearing loss, and some dizziness, and facial muscle paralysis.