The way it was explained to me, it is a sign that your immune system can't fight everything so it let my skin down 1st. Which is probably true because I started to peel, almost like a sunburn. And got blisters on my lips.
Took a number of weeks to return to normal

I've red about that, but no these are larger water blisters on top of toes, hands. I see oncologist Tuesday, so will find out more then. Thanks though

No antibotic s & 2 were quarter size. I will speak to oncologist at my next appoint

Petechiae are small, pinpoint-sized red or purple spots that appear on the skin due to bleeding under the capillaries. When I over exercise these happen on my lower leg. The more exercise I do the color change can be pink, reddish, purple? These go away after a few days of no activities. For a few month I had these until I realized that my activities cause this skin problem? After a week of no exercise my skin cleared up.

Sorry to ask but are these blisters large and have you recently taken antibiotics?