The skin infection ringworm is not actually caused by a worm, but by a mold-like fungi called a dermophyte.  The fungal infection caused by ringworm develops in the top layer of skin and created a red circular rash.  This rash assumes the shape or resemblance to the outline of a worm, hence where it gets its name.   The rash typically starts as a small red bump or scaly patch of skin. This rash may, or may not, itch – but if you ask those who have experienced it, they will tell you it tends to be itchy and uncomfortable.