In short
Eczema is also called dermatitis.
What it is1
A rash is an area of irritated or swollen skin.
MedlinePlus
Worth knowing3
Some rashes develop right away.
MedlinePlusContact dermatitis is a common type of rash.
MedlinePlusEczema is the name for a group of conditions that cause skin to become dry and irritated.
NHS website
What helps3
Because many things can cause a rash, it is important to find out what kind it is before treating it. A bad rash, a rash that does not go away, or a rash with other symptoms needs a visit with a health care provider.
MedlinePlusTreatments may include moisturizers, lotions, baths, cortisone creams that relieve swelling, and antihistamines, which relieve itching.
MedlinePlusTreatments may include medicines, skin creams, light therapy, and good skin care.
MedlinePlus
Sources
- MedlinePlus, National Library of Medicine: Dermatitis
- MedlinePlus, National Library of Medicine: Dermatitis
- NHS website: Dermatitis (adapted; Open Government Licence v3.0), as at 13 October 2026
Contains public sector information licensed under the Open Government Licence v3.0.
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