Written by Neela K. Sethi, M.D.

Ringworm is not caused by a worm at all, but rather is a fungal infection related to the same family of organisms responsible for athlete’s foot.

Years ago ringworm was believed to be caused by an actual worm, as it has a thin, round, raised border like the creepy, crawler you see in the garden!  It can occur anywhere on the body.  It usually first appears as red raised patches or a scaly round patch.  Only as it grows, may it take on a more ring-like appearance, consisting of  an active red raised border with a smooth center.  When it occurs on the scalp, it can even make your hair fall out.

Ringworm can be itchy and uncomfortable, but is rarely dangerous.  It is contagious, however, often passing between family members sharing hats, combs and brushes, or from contact with pets.

Treatment for ringworm includes an over-the-counter anti-fungal cream, such as one containing tolnaftate, miconazole or clotrimazole.  These should be applied two to three times a day, with gradual resolution beginning within one week. If you do not see results within a few weeks of treatment, consult your pediatrician for a prescription strength cream.  When ringworm is on the scalp, oral anti-fungal medication often must be used.  Medicated shampoos may have use in this circumstance as well.   Thorough treatment includes treating any affected family members or pets as well.

Routing Out Ringworm
-    avoid direct contact with affected individuals or pets
-    treat with an anti-fungal cream, available over-the counter or by prescription
-    in severe or prolonged cases, or if the scalp is involved, talk to your doctor about oral medication or shampoos
-    treat all affected family members and pets to avoid re-infection