That's what this shit is. Mine looks different than most, but it's poison ivy. After I found out, I searched the internet for more information. There are things I never knew and I'm going to share.
While most often rash occurs 8-48 hours later, it CAN (and did) show up as many as 15 days after exposure. (well fuck me standing)
Scratching the rash, or any blisters if they occur, will only aggravate the skin and prolong the rash, it won't spread it. This contrary to common belief. (to hell with it. I'm scratching)
Over the counter topicals do little to ease the symptoms (no shit) and can in some cases increase skin irritation (I have discovered this to be true. A hex on benedryl).
Poison ivy rash is not contagious. It is the plant oil which causes rash and once washed from the person or clothing, there is no way to spread the rash. (A discovery... I have touched some very, very inconvenient places while in the vicinity of the damnable ivy)
One outbreak may appear to spread as new rashes continue to develop as much as a week apart, but all in the areas effected by the original contact. (I touch myself way too much)
Poison ivy rash can last around three weeks. (one and a half and counting. hand me the back scratcher)
Note to self: "Mia, never again have wanton sex in the bushes."