Originally Posted by igigi
Only when I added the last weight increment I started feeling that sharp needle pain in that spot and I knew that was trouble. Was able to finish the session but it was a mess.
From my experience - primarily because am a slow learner sometimes - as soon as you feel the needle sensation, stop immediately. Then press firmly with your thumb for five minutes or so, to force any trapped lymphatic fluid out, and try to remain flaccid the rest of the day. That gives the skin (well, the "mucous membrane") the best chance to re-bond to the underlying tissue.
Also, an itching or tingling sensation is usually an indicator that you don’t have a blister yet, but it’s ringing the doorbell. Fuck the rest of the session; stop immediately.
Further also, once you’ve had blisters, new blisters tend to form over the same spots as old ones. I suspect that’s because the bond between layers has been weakened. I have a spot to the left of the meatus isn’t visible until I hang for about an hour; after that, I’ll see a lighter-colored patch there. It’s not a blister, at least not yet, and it doesn’t seem to hurt anything, and goes away in an hour or two.