Children are mostly affected by ringworm. They can pick up in contact sports (skin-to skin) such as in football or wrestling, or from cats or dogs. Sharing combs and brushes is also a good way to pick up ringworm.
Ringworm starts out with scratching, but the person can be contagious even before any symptoms appear. The skin looks just scaly at first, then the fungus spreads and forms a ring on the skin that is generally, very visible. This is why some people think that a worm causes ringworm.
Children often contract ringworm after high sugar holidays, such as Halloween and Christmas. This is not an accident since fungi love to feed on sugar. Ringworm can also appear after antibiotic therapy when acidophilus is not consumed to replenish the internal supply two hours after the routine antibiotic dose.