If you need medical advice, please contact your physician. Contact with this annoying oil produces a rash in three out of four people. The rash can begin within a few hours after contact, or it can start three to five days later. The rash starts with itchiness and swelling, followed by a reddish inflammation of tiny pimples.
Blisters then form and then couple in a chain-like reaction.
This fluid then hardens to a yellowish crust. These plants are a significant cause of worker's compensation claims in the United States. They are also the source of considerable distress to outdoor recreationists and hobbyists. There is no cure for the rash once it begins, only relief of the symptoms. Avoid further contact with the plant oils if possible.