2 doctors weighed in:

How do you know if a rash was caused by poison oak?

2 doctors weighed in
Dr. Jack Mutnick
Internal Medicine - Allergy & Immunology

In brief: Poison Oak Rash

Typically an itching, red rash with bumps or blisters in a linear pattern or wherever the oil touched.
The rash does not spread by the fluid from the blisters. Therefore, once a person has washed the oil completely off the skin, the rash is usually not contagious.

In brief: Poison Oak Rash

Typically an itching, red rash with bumps or blisters in a linear pattern or wherever the oil touched.
The rash does not spread by the fluid from the blisters. Therefore, once a person has washed the oil completely off the skin, the rash is usually not contagious.
Dr. Jack Mutnick
Dr. Jack Mutnick
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Dr. David Voron
Dermatology

In brief: See below

The rash of poison oak often has a linear configuration reflecting the points of contact of the broken stem of the plant with the skin.

In brief: See below

The rash of poison oak often has a linear configuration reflecting the points of contact of the broken stem of the plant with the skin.
Dr. David Voron
Dr. David Voron
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