Athlete's foot is a common skin problem caused by a fungus.
Usually beginning on the skin between the toes, the fungus
infection becomes scaly and itchy. Over time it may cause
a break in the skin and become sore. The medical term for
athlete's foot is tinea pedis.
How does it occur?
The fungus that causes athlete's foot is everywhere in the
environment. It is commonly picked up from the floors of
showers, locker rooms, and exercise facilities. The fungus
is more likely to grow on sweaty, constantly damp, or
improperly dried feet (especially in shoes or socks with
poor ventilation).
What are the symptoms?
Symptoms on the feet include:
- itching
- cracked and peeling skin, usually between the last two
toes
- soreness
- blisters (occasionally).
How is it diagnosed?
Your health care provider can usually diagnose athlete's
foot after examining your skin. Sometimes he or she may
swab or scrape off a skin sample to test for fungus. If
your provider suspects that you may also have a bacterial
infection, the skin sample may be tested for bacteria.
How is it treated?
Athlete's foot can often be treated successfully with a
nonprescription antifungal medicine such as Micatin,
Tinactin, or Desenex. These medicines are creams that you
put on the skin of your foot. If the infection is severe or
widespread, your health care provider may prescribe a
medicine to take by mouth.
How long will the effects last?
Some people have mild athlete's foot infections just once in
a while. These infections usually clear up in a few days.
Other people have infections often or nearly constantly for
weeks, months, or years. If you have frequent or prolonged
problems, see your health care provider. Your health care
provider may prescribe medicine that not only treats the
ongoing itch and discomfort but also helps prevent a more
serious bacterial infection.
How can I help prevent athlete's foot?
Follow these guidelines:
- Keep your feet clean and dry, especially in hot weather.
Dry your feet well after bathing, especially between the
toes.
- Put an antifungal powder on the infected areas of your
feet.
- Wear athletic socks that wick moisture away from your
foot. These socks are usually made with a special
synthetic material, such as Coolmax or Duraspun.
- Change your socks every day, or more often if the socks
become damp.
- Wear sandals or shoes with ventilation holes or porous
upper material (a natural material such as canvas or
leather rather than man-made material).
- Air out your shoes when you aren't wearing them.
- Wear thongs or sandals when you take a shower in a locker
room.
- Disinfect shower and locker room floors.


Disclaimer: This content is reviewed periodically and is subject to
change as new health information becomes available. The
information provided is intended to be informative and educational and is not a
replacement for professional medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
HIA File BJM3160F.HTM Release 9.0/2006. Copyright © 2006 McKesson Corporation and/or one of its subdiaries. All Rights Reserved.
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