On vagina during exercise. Sorry if tmi. I'm trying to get fit, just joined the gym, but have come away with two blisters after just one one hour work out. Im on my period so had a pad on, which I changed straight after. Anything else I can do to prevent/ treat them?? I can forsee them driving me mad and I don't want to give up on getting fit just because of that. Have searched on the rest of the Internet but there is surprisingly little about this problem, for blisters in other places they say use plasters but obviously that's not going to work in this instance!