OK, I don't get big blisters - just small ones.
I get Hives that are blisters and they're itchy as hell the same day.
Sometimes the next day or 2 they still itch, and sometimes they don't.
I use polysporin on my arms and it helps some.
Sometimes, when the hives are really big I use an antihistamine spray for bug bites and such. This helps short term enough to sleep.
Next day the rash is manageable.
But it still itches and so on.
Maybe my issue is just eczema.

My rashes/blisters start at about 5 mins in the water, give or take. Once the pain starts, I can't think straight as the pain is too much. It's like being poked with hot rods.
I go to the kitchen and wash my arms/hands with dish soap but the pain is still there.
The only thing that takes it away is polysporin applied overnight. And that takes the pain away only after a half hour or so.

I still have blisters and such on my right forearm now due to having my arm in the water last night - from knuckles to elbow.

I know its probably good to know what is causing the reaction but wouldn't no reaction be better? Why not wear gloves if this is a constant issue?

Can't pluck algae, manipulate frags etc with cumbersome gloves on

The meds are avaible of the ebay as fish flex , so far the best place ive found for prices that are willing to ship to Canada

I have your exact issues as of lately I'm scared to put my arm in the tank itchy rash on arms plus now my thumbs are drying out and cracking.

Been suffering that for several years now :)

I know those long coralife gloves are so thick as to render them useless for anything involving fine motor. I was just at lee valley and they had a number of different long gloves (mucking gloves) that are much thinner. Most were more like elbow length, but there were a couple that were shoulder length. My wife got a pair to work in her tank and they feel much more like rubber gloves for washing dishes. Anything has to be better than suffering through the kinds of skin irritations described here!

It can cause septecimea just fyi , not something you want to get , oh ya and in rare cases flesh eating desease too . So anyone wanna do a group buy for a bunch of fish flex?

Update , I have dosed my aquarium 3 days in a row last week with 10% water changes in between and my zoa pox has cleared up completely . One frag that was half melted when I started , has all the polyps open and healthy so it worked for zoa pox for sure . Hopping to add a fish or two over the next few months and hopefully im vibrio free as well. No ill effects to sps , lps , inverts or fish .