question: Day I had mammogram had intense itching  on left side. Blister developed and then more red itchy spots. 3 days later I was diagnosed with shingles. Has been a month. No pain, but rash spread to stomach and hairline. Itchy but does not look like shingles. Took acyclovir for a week after diagnosis. Still getting some red spots, but no blisters. Could this have been some kind of reaction to radiation?