### Differences Between Eczema and Ringworm Both eczema and ringworm can cause red, itchy skin, but they are different conditions with different causes and treatments. #### Causes - **Eczema**: The exact cause is unclear, but it is believed to be due to a combination of genetic and environmental factors. Certain triggers can cause flare-ups, such as stress, allergens, and irritants. - **Ringworm**: This is a fungal infection caused by dermatophytes. It is highly contagious and can be spread through direct contact with an infected person or animal, or by touching contaminated objects. #### Symptoms - **Eczema**: Symptoms include red, inflamed, itchy skin that can become dry, swollen, and crusty. It can appear anywhere on the body. - **Ringworm**: This condition often produces a scaly, ring-shaped rash, typically on the trunk, arms, or legs. The rash is usually itchy and can be mistaken for other skin conditions like nummular eczema. #### Diagnosis - **Eczema**: Doctors diagnose eczema by examining the skin and ruling out other conditions. They may ask about family history and possible triggers. Skin tests or blood tests may also be conducted. - **Ringworm**: Doctors can often diagnose ringworm by looking at the skin. If uncertain, they may scrape some skin cells to examine under a microscope. #### Treatment - **Eczema**: There is no cure, but symptoms can be managed with moisturizers, anti-inflammatory medications, and avoiding triggers. - **Ringworm**: This can usually be treated with over-the-counter antifungal medications. In some cases, stronger prescription medications may be needed. #### Contagiousness - **Eczema**: Not contagious. You cannot catch it from or pass it to another person. - **Ringworm**: Highly contagious. It can spread through skin-to-skin contact or by sharing personal items like towels and clothes. In summary, while both eczema and ringworm can cause similar symptoms, they have different causes, treatments, and levels of contagiousness. If over-the-counter treatments for ringworm do not work, or if you are unsure about your symptoms, it is best to consult a doctor.