Europe. This is a list of the largest cities in Europe by population within city limits. It deals exclusively with the areas within city administrative boundaries (municipalities) as opposed to urban areas or metropolitan areas, which are generally larger in terms of population than the main city.
I'm making my own soap treatment taht will have 22 different natural ingrediants that will first, remove the oils from the deep in the skin (homemade lye & lard soap is good for that) second, dry it out, third, actually cure the poison ivy dermatitis, and fourth, sooth the itching. I sure hope is works.
If you don't have any of these symptoms, you can probably treat the rash at home, according to the AAD. If you know you've touched poison ivy, poison oak or poison sumac, immediately rinse your skin with lukewarm, soapy water. This may remove some of the oil from the plants. Thoroughly wash all the clothes you were wearing when you came into contact with plant.