When the Eustachian tube, or narrow passage between the inner ear and the back of the throat, is not working properly, fluid can build up. The fluid can cause other problems to occur, such as infections and inflammation.

Vitamin C is beneficial to the body’s ability to grow and repair itself. The absorption of iron; the growth and repair of gums, teeth, blood vessels and bones; and a well-functioning immune system all rely on the dietary intake of vitamin C.

If you experience ringing, buzzing or clicking in your ear, or if you hear a whistling or hissing sound, you are not alone. Ringing in the ears -- sometimes referred to as tinnitus -- is common, according to MedlinePlus. It may affect one or both ears, and it may be constant or intermittent.

Otalgia is the medical terminology for ear pain. Ear pain can arise due to various causes. It is commonly due to local causes that arise from the ear or referred pain to the ear due to problems in nearby areas.

Whether caused by the common cold, allergies or something more serious, congestion makes it tough for your toddler to breathe. It takes time for your tyke to get rid of congestion, but you can make her feel better by paying special attention to her diet.

Dry, chafed skin on the nose is very common after a bout with a cold, flu, allergy symptoms or sinus infection. After a week or so of frequent nose blowing and wiping, the skin on and around the nose frequently becomes very dry, red, flaky and tender.

A runny nose is usually just one symptom of an overall problem, such as a cold, allergies or exposure to any number of irritants. The blood vessels and nasal tissues in your nose produce excess mucus, which can either travel through your nostrils and out your nose or down the back of your throat as post-nasal drip.

Earaches and sore throats often occur before, during and after a bout with the common cold. The Eustachian tube runs from the back of the throat to the ear, and often becomes infected or irritated due to excess fluids. Earaches due to an infection are more common in children than adults.

Simple colds and respiratory infections can often be self-diagnosed, meaning that most people find it quite obvious that they have developed a "cold." Many simple colds are associated with Rhino viruses that circulate around households and communities, especially in the wintertime.

Outdoor swimming is one of summer’s pleasures. However, contaminated water in a lake can cause you to become ill with a sore throat after even just a short swim. Fortunately, you can prevent sore throat after swimming in a lake by changing your swimming style and heeding health warnings.

Most sore throats are caused by a viral infection. Strep throat is an exception, caused by an infection with bacteria called group A Streptococcus. The infection, which occurs most often in school-aged children, can cause a very sore throat. Exercise typically will not make the infection itself worse.

Tooth extractions are done for a variety of reasons: you may have too many teeth, causing overcrowding in your jaw or you may need to have braces placed on your teeth. This is considered oral surgery because the dentist or oral surgeon has to anesthetize you before extracting your tooth.