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怎樣遠離“游泳耳病”
[ 2008-07-10 15:30 ]

夏天來了,天氣熱了,游泳、洗澡就會更頻繁。游泳耳病即外耳病,是一種外耳的真菌或細菌感染。雖然叫做“游泳耳病”,但它可不是游泳者的“專利”,不游泳也可能會得病的。那么怎樣治療和遠離“游泳耳病”呢?下面的文章可以教您幾招。

怎樣遠離“游泳耳病”

Swimmer's ear is an inflammation, irritation, or infection of the outer ear and ear canal.

Alternative Names Ear infection - outer ear - acute; Otitis externa - acute

Causes, incidence, and risk factors

Swimmer's ear is fairly common, especially among teenagers and young adults. Swimming in polluted water is one way to contract swimmer's ear. The condition also can be caused by scratching (in) the ear or by an object stuck in it. Trying to clean wax from the ear canal, especially with cotton swabs or small objects, can irritate or damage the skin.

Swimmer's ear is occasionally associated with middle ear infection or upper respiratory infections such as colds. Moisture in the ear makes the ear susceptible to infection from water-loving bacteria such as Pseudomonas. Other bacteria, and rarely, fungus, can also cause infection.

Symptoms

Ear pain -- may worsen when pulling the outer ear Itching of the ear or ear canal Drainage from the ear -- yellow, yellow-green, pus-like, or foul smelling

Signs and tests

When the doctor looks in the ear, it appears red and swollen, including the ear canal. The ear canal may appear eczema(濕疹)-like, with scaly shedding of skin. Touching or moving the outer ear increases the pain. The eardrum may be difficult for the doctor to see with an otoscope (耳鏡) because of the swollen outer canal. Taking some of the ear's drainage (排泄物) and doing a culture (培養) on it may identify bacteria (細菌) or fungus (真菌).

Treatment

The goal of treatment is to cure the infection. The ear canal should be cleaned of drainage to allow topical medications to work effectively.

Effective medications include ear drops containing antibiotics to fight infection, and corticosteroids (皮質類固醇) to reduce itching and inflammation. Ear drops should be used abundantly (four or five drops at a time) in order to penetrate the end of the ear canal. If the ear canal is very swollen, a wick may be applied in the ear to allow the drops to travel to the end of the canal.

Occasionally, pills may be used in addition to the topical medications. Analgesics (止痛劑) may be used if pain is severe. Putting something warm against the ears may reduce pain.

Protect ears from further damage. Do not scratch the ears or insert cotton swabs or other objects in the ears. Keep ears clean and dry, and do not let water enter the ears when showering, shampooing, or bathing.

Expectations (prognosis)

Swimmer's ear responds well to treatment, but complications (并發癥) may occur if it is not treated. Some individuals with underlying medical problems, such as diabetes, may be more likely to get complications such as malignant otitis externa (外耳炎).

Complications

Chronic otitis externa Malignant otitis externa Spread of infection to other areas of the body

Calling your health care provider

Call for an appointment with your doctor if you develop any symptoms of swimmer's ear. Call your doctor if the symptoms worsen or persist despite treatment, or if new symptoms appear, including pain and redness of the skull behind the ear or persistent fever.

Prevention

Dry the ear thoroughly after exposure to moisture. Avoid swimming in polluted water. Use earplugs when swimming. Consider putting a few drops of a 1:1 mixture of alcohol and white vinegar in the ears after they get wet. The alcohol and acetic acid prevent bacterial growth.

(來源:howstuffworks.com 實習生朱一楓 英語點津 Annabel 編輯)

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