Dime size blisters
And only three of them? From almost everything I have read, a few small blisters is nothing to worry about. It might be a slight bargaining tool, but as for something to worry about, it would be far down the list. Now it it had a thousand dime size blisters, or a hundred large blisters, I would certainly say something different. Read some of the websites, such as David Pascoes, for much more info.