What
is a Jock Itch?
There
are several common superficial fungal infections and jock itch
is one of them. It is known medically as Tinea cruris and is
similar to athlete's foot (Tinea pedis) and Tinia capitis (scalp
fungal infection) and ringworm (fungal infection of skin). The
fungus that usually causes jock itch is called Epidermophyton
floccosum, although jock itch or athlete's foot may be caused
by E. floccosum or mixed infections with Trichophyton rubrum
or T. mentagrophytes. Jock itch will usually first present as
red inflamed patches on the upper inner thighs, and then progresses
as red moist patches with raised scaling borders. It is felt
that most of the inflammation is the body's reaction to the
fungus as well as some associated bacterial infection. Heat,
humidity, friction, obesity, and heavy clothing all appear to
increase the risk of jock itch. It is more common in men who
wear athletic supporters (jocks), but also occurs in women.
The red patches are itchy, and scratching them may spread the
fungus and lead to bacterial super-infection.
How
does one get it?
Jock
itch can occur in isolation but is mildly contagious and may
be acquired in public showers or swimming pools. Sharing towels
can spread the fungus. Wearing jock straps that have been kept
in a damp locker without frequent washing is a common story
for jock itch sufferers. Prolonged wearing of wet bathing suits
or damp underwear will promote fungal growth.
How
does one get rid of it?
Treatment
with over-the-counter antifungal creams or powders is usually
effective. It is important to keep the affected area dry and
to wear fresh clean cotton underwear. Dry off thoroughly after
bathing before getting dressed. If over-the-counter medications
do not work within a few weeks, a trip to a dermatologist or
family care doctor may be needed. In persons who are immuno
compromised treatment may be more protracted and may require
oral agents.
Effective
topical agents: Miconazole (Monistat-Derm, Micatin), Econazole
(Spectazole), Clotrimazole (Lotrimin), Naftifine (Naftin), or
Tolnaftate (Tinactin, Aftate).
Additional
sites for information:
Tinactin home page
