I have a fairly severe rash that even has some blisters. it first appeared on my arms and I figured I had poison ivy from yard work the previous day. However, after treating it for poison ivy with over the counter treatments for a week I also started to develop a rash on my side that does not have blisters but has gone as far down as my groin area and a little on my stomach and chest. I would describe the discomfort as mainly itching but also with some burning sensations.