</font><font color="blue" class="small">( The chemical that causes problems in poison ivy (and other members of the Rhus family) is in a subclass of catechols, called urushiol. It is not an acid, and does not cause a chemical burn. )</font>
Good information kofronj. I'd like to add that getting the oils off quickly is important and mineral spirits can aid that. Rinse off the mineral spirits after using with COLD water as warm water will tend to open the pores and can allow more oil into the pores. According to medical science, upwards of 90% of people are allergic to urushiol (japanese for laquer) oil, but it's a matter of time and exposure. The more times you're exposed, the more likely you are to develop a reaction. Avoiding forest fires or any fire where poison ivy can be burning is a good idea as the oil is carried in the smoke and can become systemic. Not everyone reacts the same to the treatments, however, severe cases usually require steroid treatment. Keep in mind that urushiol oil can remain potent on any surface, including dead poison ivy vines, for up to 5 years and usually at least 1 year. Some people may find relief in using Benadryl (diphenhydramine hydrochloride), a decongestant the reduces the histamine response in allergic reations, and coating with Calamine lotion. Any serious infections, as in a lot of body coverage, or systemic, as in inhalation, should be evaluated by a physician as allergic reactions can become fatal. John
