These injections help with your allergy symptoms. They slowly help your immune system build up a tolerance to one or more allergens (those are the things you're allergic to). The goal is to help your body get used to these allergens so they won't trigger a severe allergic response.

If you have trigeminal neuralgia, you know how distressing it can be. You feel drained and hopeless. You live in fear of the next attack. But the good news is that some attacks are caused by specific triggers. Avoid those triggers and you may have fewer attacks. Here are some triggers we know about.

We all need to be aware of the danger of noise-induced hearing loss. That's hearing loss that's caused by loud noise. It tends to happen over time. When you finally notice it, your hearing is permanently damaged. Let's learn more about this type of hearing loss, and how you can prevent it.

It's important to keep your voice healthy. Teachers, singers, salespeople and others who rely heavily on their voices need to know how to keep the voice strong. So let's take a few moments to learn about proper voice care.

The cochlear implant is an electronic device that can provide a sense of sound to a person who is deaf or profoundly hard-of-hearing. This type of device is very different from a hearing aid, which serves only to amplify sound. A cochlear implant transforms sounds into electrical signals and transmits these signals directly to the auditory nerve of the inner ear, bypassing any damaged structures in the ear that are impeding normal hearing.

This scan lets doctors see inside your body by taking x-ray images from many angles. These are combined to show clear cross-section slices of parts of your body. A CT scan shows much more than a typical x-ray. It can show cancer and other problems.

This minimally-invasive surgical procedure is performed to help treat recurrent ear infections or a build-up of fluid in the middle ear. Small metal or plastic tubes are inserted into the eardrum to drain fluid and to allow air into the middle ear, equalizing pressure between the middle and outer ear. This procedure is most commonly performed on young children.

A hearing aid is a small device, worn on or in the ear, which amplifies sound and broadcasts it to the eardrum. Hearing aids are used to help those with hearing loss to listen and communicate more clearly. There are several types of hearing aids, and choosing the appropriate device can depend on comfort, size, performance and level of hearing loss.

If you've lost some of your hearing, you know how frustrating it can be. You may miss parts of what people are saying. And people may leave you out of conversations altogether. But there are some simple things you can do to make communication easier.

This scan lets doctors see inside your body without using radiation. Instead, MRIs use magnets and radio waves. An MRI shows clear views of your soft tissues. It can show cancer and other problems.

This scan lets doctors see inside your body. A PET scan is different from an MRI or a CT scan, because it shows how your organs and systems are working. It can give doctors a clear view of some types of cancer cells, which show up brightly on a PET scan. It can also help doctors diagnose other disorders throughout your body.

This surgery corrects a deviated septum. Your septum is a thin wall of cartilage and bone inside your nose. It separates your nostrils. If you have a deviated septum, it is crooked or off center.

Strep throat is a contagious infection of the throat and tonsils caused by the streptococcus bacteria. It can make your throat feel painful and scratchy. Strep throat can be treated with antibiotics. But first, you need a medical test to make sure your sore throat is being caused by the bacteria.

This routine, outpatient procedure is used to remove the tonsils. These are the large glands at the back of the throat that normally help protect against infection. In some people who have frequent throat and ear infections, removing the tonsils can help reduce the number of infections. People who have very large tonsils may also have them removed so that they can breathe and sleep more easily.