Ringworm is a rash caused by a fungus that has infected your skin. (Despite its name, this rash is not caused by a worm or parasite.)
Ringworm is spread by contact with an infected person or infected surface, such as clothes, towels, and bedding. It is more common among people participating in sports that involve a lot of contact with other people, such as wrestling. Children going to day care and people living in crowded conditions are also more likely to get ringworm.
Because ringworm is caused by a fungus it is more likely to occur in warm humid climates where fungus grows more easily.
Ringworm on the skin is called tinea corporis. When ringworm is on the feet, it is called tinea pedis, and when it is on the scalp, it is called tinea capitis. The fungus can also infect the inner thighs and groin. This type of ringworm is called jock itch or tinea cruris.
The rash caused by a ringworm infection is usually round or oval and has a raised border. It starts small and slowly grows larger. As it grows, the central part of the rash usually becomes clear. The rash may itch and the skin may become scaly. There may be some small, pus-filled bumps. Over time the rash spreads from one part of the body to other parts.
Ringworm on the scalp usually causes patches of hair loss.
Your healthcare provider will ask about your symptoms and examine you. Your provider may scrape the skin and look at it under a microscope or use an ultraviolet (UV) light to look for ringworm on the scalp.
The treatment of ringworm depends on your health and how much the infection has spread on your skin or scalp. Most of the time putting an antifungal cream such as Tinactin, Micatin, or Lotrimin on the area of the rash once or twice a day is all that is needed. Rub the cream in well and apply it to an inch beyond the border of the rash. It's important to keep using the medicine for a week after you no longer see a rash to make sure it's completely gone.
In some cases, your healthcare provider may prescribe a medicine to take by mouth. You may be given medicine, for example, if you have the rash on your scalp or in several places or if your immune system is weak.
Ringworm may take several weeks to clear up with a cream, depending on the extent of the rash. If you are given an oral medicine, it may clear up faster. It is common to get it again after you've had it. Sometimes it becomes a long-term problem.
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How does it occur?
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What can I do to help prevent ringworm?
Over the Counter Medications for Ringworm
example: Clotrimazole 1% cream / spray
example: Miconazole 2% cream / powder
example: Terbinafine (Lamisil®)
example: Tolnaftate 1% cream / powder
Published by RelayHealth.
This content is reviewed periodically and is subject to change as new health information becomes available. The information is intended to inform and educate and is not a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional.
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