oh good grief!
These were not really the answers I wanted!

This is going to be a rental property (as well as my getaway) and I want to create a landscape where people can walk to various points of the creek. So many waterfalls from medium to small to hang out. So I've weed whacked three times already as in this area, things grow FAST because of all the rain and wetness. I have a strong feeling that the oil will pass thru clothing, especially when rained upon b/c I now have it all over my arms and legs and I had boots, long pants, t-shirt and button down long sleeved shirt buttoned all the way too. I just read soap can spread the oil, and I say, yikes! (maybe the other reason I'm now covered?) Well, this isn't a thread on how to deal with the itch and pain, but on how to stop me and my guests from getting it in the first place.
So am I right when I hear you guys think that weed whacking will only make the ivy problem WORSE with time? And that the more I expose myself the worse it'll be even with slight exposure? oh gosh, please no. I figured if I could introduce grass, maybe over time and years it'll be thick enough where at least in the non-forested areas I can keep this stuff more at bay. And, the weeds, in general, won't grow as high and block the view.
I need a 2nd opinion lol. Someone kindly give me an answer. I'm flaring with itch all over right now. It's almost impossible to sleep. Can't be having this!
hoping and praying.
Ken