for last 3 weeks, I have developed red bumps on lower part of both arms around the elbow. Started out with a couple, but noticed some more few days later.. Around elbow area, almost like pimples, but kind of itchy. Went to ER, dr said it could be a bug bite. Gave me prednisone and anibiotic. Took pills, somewhat clearing up but now done with pills, and notice it might be starting again, Can you advise what this may be?