MY DOG HAS HAD A RASH OFF & ON, NOW ON ALL THE TIME. WE SEEM TO POSSIBLY HAVE POISON IVY IN THE AREA SHE ROAMS. HAS ANYONE HAD A PROBLEM WITH THEIR DOG GETTING A POISION IVY RASH & HOW CAN I TREAT HER?  IT KEEPS COMMING BACK I HAVE NOW ENDED HER CONTACT WITH THAT AREA? ANY COMMENTS WILL BE APPRECIATED.