Ringworm, technically known as tinea corporis, is another name for a fungal infection characterized by large rings which have scale at the periphery and can gradually spread. Ringworm gets its name from the characteristic ring that can appear on the surface of your skin; however, it has nothing to do with an actual worm under your skin. Ringworm is characterized by an itchy, red circular rash with healthy-looking skin in the middle. It can occur anywhere on the skin, including the face, buttocks or trunk. Ringworm is contagious and can be spread in the following ways: skin-to-skin contact with an infected person, animal to human contact, object to human contact, and soil to human contact. Application of steroid creams to ringworm will make it grow and enlarge and become a more severe problem. Examination under the microscope is important and culture is necessary in some cases. If ringworm covers a large area or is severe enough, a prescription-strength topical or oral medication may be recommended.