Is a ringworm a protist or a fungus?

Ringworm is a skin infection caused by a fungus.  There
are several areas where ringworm can attack:  scalp, groin area, feet, and the skin of
the body; often there are several patches of ringworm on a person at one
time.

Ringworm usually does not necessitate a visit to the
doctor, and will respond to self-treatment in about four weeks with over-the-counter
anti-fungal sprays, powders, or creams.  Most of these treatments contain miconazole,
clotrimazole, or similar ingredients.  Patients should daily change
sheets.

Sometimes antibiotics are also needed if treatments
do not alleviate the symptoms.