What is side effect for hearing aid?

* Earwax build-up. Hearing aids can block the ear canal, which can lead to a build-up of earwax. This can cause itching, pain, and hearing loss.

* Feedback. Feedback is a high-pitched whistling sound that can occur when the hearing aid is not properly fitted or the volume is too high.

* Skin irritation. The earmold or tubing of the hearing aid can irritate the skin of the ear. This can cause itching, redness, and pain.

* Infection. The ear canal can become infected if bacteria or fungi enter the ear. This can cause pain, discharge, and hearing loss.

* Tinnitus. Tinnitus is a ringing, buzzing, or hissing sound in the ears. It can be caused by hearing aids, but it can also be a sign of an underlying medical condition.

* Dizziness. Some people experience dizziness or vertigo when they first start wearing hearing aids. This is usually temporary and goes away within a few weeks.

* Allergic reactions. Some people are allergic to the materials used in hearing aids. This can cause itching, redness, and swelling of the skin.