What is a rash?
A rash is an area of irritated or swollen skin that looks different from the rest of your skin. It might be red, bumpy, itchy, dry or even painful. Rashes can show up anywhere on your body and happen for lots of different reasons.
Causes of a rash
Rashes can be caused by many things. Some common causes include allergic reactions, skin infections, heat or contact with something that irritates the skin like soap, plants or chemicals.
Risk factors for a rash
You may be more likely to get a rash if:
- You have allergies or sensitive skin
- You spend time outdoors around plants or bugs
- You use new soaps, lotions or laundry products
- You sweat a lot or wear tight clothing
- You have certain health conditions like eczema
Symptoms of a rash
The look and feel of a rash can vary, but common symptoms include:
- Red or pink patches on the skin
- Itching or burning
- Bumps, blisters or dry, flaky skin
- Swelling or tenderness
- Skin that feels warm to the touch
Diagnosing a rash
A doctor can usually tell what kind of rash it is by looking at it and asking about your symptoms. Sometimes they may:
- Ask about recent foods, products or outdoor activity.
- Take a small skin sample (biopsy) if the cause isn’t clear.
- Do allergy tests if they think it’s a reaction.
Treatment of a rash
Most rashes go away on their own, but treatments can help with itching or discomfort:
- Use anti-itch creams like hydrocortisone.
- Take antihistamines for allergic reactions.
- Avoid scratching to prevent infection.
- Keep the area clean and dry.
See a doctor if the rash spreads, gets worse or doesn’t go away.