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When to seek medical advice
By Mayo Clinic staffHeat rash usually heals on its own and doesn't require medical care. See your doctor if you or your child has symptoms that last longer than three or four days, the rash seems to be getting worse or there are signs of infection such as:
- Increased pain, swelling, redness or warmth around the affected area
- Pus draining from the lesions
- Swollen lymph nodes in the armpit, neck or groin
- A fever or chills
No tests are needed to diagnose heat rash; your doctor can determine the problem with a visual exam.
