RINGWORM

Ringworm is a skin infection called tinea that is caused by a fungus. Ringworm gets its name from the raised circular pattern that the infection forms on the surface of 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. When the fungus appears on other areas of the body, it may not have the classic round shape. Other areas of the body affected by ringworm include the scalp, fingernails, feet, groin, face, and hands. The infection on each of these body areas has a different name.

On 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. Ringworm of the bearded area of the face and neck causes swelling and marked crusting, often with itching. It may cause the hair to break off. Ringworm of the face that is not on the bearded area is rarely ring-shaped, but rather red, scaly patches with indistinct edges.

When the nail bed of a fingernail becomes infected, it can become thick and brittle, or it can turn powdery and crumble. Ringworm on the top of the hand will likely be ring-shaped. If on the palms and the spaces between the fingers, it will cause thickening.

In the groin area, tinea infection is commonly known as jock itch. A reddish, itchy rash occurs in the moist skin folds and may extend down one or both thighs. On the soles and heels of the feet, ringworm causes dry, cracked skin, but is found most often between the fourth and fifth toes. Blisters may also form on the soles of the feet and between the toes. It is more often called athlete's foot.

Ringworm is spread by contact with someone who has ringworm, or by touching an object that may contain the fungus, such as hairbrushes, shower stalls, or towels. Pets are a common source of infection with ringworm and can spread the infection.

Many different kinds of fungus can cause ringworm. The length of time varies between the time you are in contact with the fungus and the time you develop symptoms. Often, ringworm of the body appears 4 to 10 days after exposure, but scalp ringworm can take 10 days to 2 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 used by a person with ringworm. Your animals should be closely checked for any loss of body hair and any other signs that might show a fungal infection. Children and infants who are infected should not be in close contact with other children until the infection has been treated. Fungi thrive on moisture so keep the affected areas clean and dry. Avoid tight pants and pantyhose. Dry off completely after a bath or shower and before putting on clothing.

Medications can be applied to the skin or taken as a pill (in more resistant cases). Ask your pharmacist about over-the-counter medications that you apply to these areas. If your infection does not improve within 2 weeks of treatment using over-the-counter medication, or it gets worse, see a healthcare provider.

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.

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