Last wk my cardiologist changed my heart med to another med, the next morning I noticed these small bumps coming up on my arms and legs like spider bites. I had this similar spider bite looking rash come up several yrs earlier after a hiking/fishing outing my family and I went on and the Dr said it was chiggers or red bugs,,I medicated the rash with a cream for poision ivy and in several days it went away. This time the little blisters have dried up, but the red infamed little patch places have either grown some or spread just a little more. Most have developed a dried skin look on top and when I manage to wash that off in the shower the red places remain inflammed and feel as it they are going to develop another fluid filled blister again,,,its not really going away, eventhough my cardiologist put me on prednisone for a week,,all that did was slow down the spreading,,,anyone have any ideas of what this is, pls email me!!! Thanks in advance!!!! Be blessed!