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Print: What causes heat rash?
Heat rash is most common in newborns and infants, but it can also affect adults. It is usually triggered by sweating too much, having a high body temperature, being overdressed or being in a very warm environment. Babies who are bundled in too much clothing and people who are not used to hot weather are most likely to get heat rash.
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Written by familydoctor.org editorial staff
Reviewed/Updated: 02/11
Created: 07/09
