The brain has two halves or hemispheres: right and left. The right hemisphere controls the left side of the body, and the left hemisphere controls the right side. In most people, the left hemisphere regulates language and speech, and the right hemisphere controls nonverbal, spatial skills.
Ear canal infection Symptoms of an ear canal infection include ear pain and itching, decreased hearing, drainage and more. Earwax blockage Sometimes ear wax can harden and block the ear canal, causing discomfort and itching, earache, and more.
Symptoms and causes. Symptoms. Outer ear infection Redness of the ear canal, draining fluids and discharge of pus are signs of swimmer's ear (otitis externa). Untreated, the infection can spread to nearby tissue and bone. Swimmer's ear symptoms are usually mild at first, but they may get worse if your infection isn't treated or spreads.