1 doctor weighed in:

How to tell a heat rash from an allergic reaction rash?

1 doctor weighed in

In brief: More localized

Allergic rash often hive or welt like may be more diffus, heat rash in warmest areas, groin , axilla, flexor creases.

In brief: More localized

Allergic rash often hive or welt like may be more diffus, heat rash in warmest areas, groin , axilla, flexor creases.
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