LO has developed these blisters on her hand. Any idea what they could be?

I was thinking maybe hand, foot, and mouth disease. About a week ago she had one red dot on her foot, but nothing else. And nothing in her mouth. She was also slightly feverish (99 degrees) and sniffy/sneezy. But she was also teething. So I just don't know. Maybe it's just from crawling around??