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Rashes Caused by Plants and Sunlight

Topic Overview

A rash develops in some people when they touch certain plants and then go into the sun. The sunlight converts a chemical in these plants to an allergen, causing an immune system reaction similar to a poison ivy, oak, or sumac rash (allergic contact dermatitis). The rash only develops in areas exposed to sunlight.

These plants include:

  • Celery, parsley, parsnip, carrot, dill, and fennel.
  • Citrus plants (bergamot, lemon, lime).
  • Queen Anne's lace.
  • Rue and angelica.
  • Fig.

Related Information

Credits

By Healthwise Staff
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer H. Michael O'Connor, MD - Emergency Medicine
Last Revised August 30, 2011

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