What are ringworm and eczema? Ringworm and eczema are common skin problems with a high incidence rate. Although they have similarities, their symptoms and characteristics are different. Ringworm is usually caused by a fungal infection that can occur anywhere on the body and is characterized by a red rash and breakouts of the skin that can cause dandruff and itching. Eczema is an inflammation of the skin caused by a variety of causes and is common on the hands, soles of the feet, legs and arms.