Ringworm is a common fungal infection of the skin and is not due to a worm. Ringworm occurs when a type of fungus called tinea grows and multiplies on your skin.
The fungus that causes ringworm thrive in warm, moist areas. Ringworm is more likely when you are often wet (such as from sweating) and from minor injuries to your skin, scalp, or nails. Try not to scratch the rash, as this may spread the fungus to other areas of your body.
Ringworm can affect the skin on your:
Ringworm is characterized by a red ring of small blisters or a red ring of scaly skin that grows outward as the infection spreads. The center of the ring may clear up, while a new ring of infection develops at the edge of the old ring. Keep the affected area clean and dry.
It's really important, where possible, to prevent spreading the infection. You should avoid sharing towels, bedding or clothes with anyone diagnosed with ringworm.
You need to see your GP if you or your child have ringworm of the scalp. Ringworm can be successfully treated with antifungal medications used either topically or orally.