I've Been Working In My Flower Garden And Now Have

I've been working in my flower garden and now have approximately 15 single itchy blisters on my legs and arms. Does not look like poison ivy because they are just a single small blister, and does not have the redness around them like chiggers. Any idea? They are driving me nuts and since I don't know what they are, I'm afraid they will spread. I get poison ivy really bad so I am extra worried about spreading.