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.
Not the first thing: poison ivy is an immune reaction to an oil. The first thing would be to absorb the rest of the oil so you cannot spread it onto yourself (aveeno). Then depends on how much weaping/fluid. May need teflon guaze to absorp the fluid. Antibacterial creme may be a bit helpful and covering helps it.