5 doctors weighed in:
What are the tests for erythema toxicum?
5 doctors weighed in

Dr. James Ferguson
Pediatrics
4 doctors agree
In brief: None I'm aware of
Erythema toxicum is a transient condition affecting 1/3 to 1/2 of newborns & is relatively easy to diagnose on exam. I don't need a confirmatory test.
Microscopic exam of some of the tiny blisters will yield eosinophils, a white cell associated with allergy.It's a cute test but i haven't done one since medical school.

In brief: None I'm aware of
Erythema toxicum is a transient condition affecting 1/3 to 1/2 of newborns & is relatively easy to diagnose on exam. I don't need a confirmatory test.
Microscopic exam of some of the tiny blisters will yield eosinophils, a white cell associated with allergy.It's a cute test but i haven't done one since medical school.
Dr. James Ferguson
Dr. James Ferguson
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