Ringworm vs. Eczema: Key Differences & When to Get Care
Ringworm and eczema can both cause red, itchy, scaly rashes, but they are fundamentally different. Ringworm is a fungal infection that can spread between people, animals, and contaminated objects. Eczema is an inflammatory skin condition and is not contagious.
Important: Appearance alone is not always enough to tell them apart. CDC guidance recommends medical testing when ringworm is suspected because several skin conditions can look similar.
What ringworm can look like
Ringworm often causes an itchy, scaly rash that may form a ring or have a raised border, but not every case looks like a perfect circle. Location and skin tone can change its appearance.
What eczema can look like
Eczema can cause dry, itchy, inflamed, cracked, thickened, or weeping skin. Atopic dermatitis often occurs in recurring flares rather than as an infection acquired from someone else.
Why treatment is different
Typical ringworm is treated with antifungal medication. Eczema treatment may involve moisturization, trigger management, and prescription anti-inflammatory treatment depending on severity.
The CDC specifically warns against using over-the-counter steroid creams on a rash that could be ringworm because steroids can make fungal infections worse or harder to recognize.
Read the CDC's ringworm guidance.
Can ringworm spread?
Yes. Ringworm can spread through skin-to-skin contact, infected animals, and shared items such as towels, bedding, or clothing. Good hygiene and completing antifungal treatment as directed help reduce spread.
Is eczema contagious?
No. Atopic dermatitis cannot be passed from person to person. For more detail, see Is Eczema Contagious?.
When should you see a healthcare professional?
- You are not sure what the rash is.
- The rash is spreading, painful, or on the face, scalp, groin, or nails.
- Over-the-counter antifungal treatment is not helping.
- You develop fever, drainage, severe pain, or signs of infection.
- You have a weakened immune system.
Frequently Asked Questions
Can eczema form a ring?
Some eczematous rashes can be round or coin-shaped, which is one reason diagnosis by appearance alone can be difficult.
Should I use steroid cream if I am unsure?
Not on a rash that might be ringworm without professional guidance. CDC guidance warns that steroid creams can worsen fungal skin infections.
Can ringworm go away without treatment?
Do not rely on that. Appropriate antifungal treatment helps clear infection and reduce transmission.
The Bottom Line
Ringworm is fungal and contagious; eczema is inflammatory and not contagious. Because they can resemble one another, an uncertain rash deserves proper diagnosis rather than trial-and-error treatment.
