Ringworm (or tinea) is a skin infection that is caused by a fungus. Ringworm gets its name from the raised circular pattern that the infection forms on the skin. Ringworm on the body begins as a ring-shaped, flat rash. Gradually the ring becomes larger and spreads, with the inside of the ring clearing. The outside of the ring can be either dry and scaly or wet and crusted.

Ringworm may affect:
* The scalp. Ringworm starts as a small pimple that grows larger and creates patches of dry, bald skin. The hair can become brittle and break off.
* The fingernails. If the nail bed becomes infected, it can become thick and brittle, or it can turn powdery and crumble.
* The feet. Ringworm causes dry, cracked skin, most often between the toes.
* The groin. This red, itchy rash occurs in the moist skin folds, and is commonly known as "jock itch."

Ringworm is spread by contact with someone who is infected, or by touching an object that has been used by someone who is infected. For example, hairbrushes, shower stalls or towels. Pets can also be infected with ringworm and can transmit the infection.

Many different kinds of fungus can cause ringworm, so it varies as to how long it takes to develop symptoms after you have been in contact with the fungus. Often, ringworm of the body appears four to ten days after exposure, but scalp ringworm can take ten days to two weeks to appear. Since so many types of fungus can cause ringworm, it is possible to become infected with more than one kind.

The easiest way to prevent ringworm is to avoid sharing any clothing, towels and other items that a person with ringworm has been in contact with. Children and infants who are infected should not be in close contact with other children until the infection has been treated.

Fungi love moisture. Be sure to keep the affected areas clean and dry. Medications can be applied topically, or taken as a pill (in more resistant cases). Ask your pharmacist about over the counter medications. If your infection does not improve in three days, or it gets worse, see a healthcare provider. Not all infections that look like fungal infections, are.

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