Hi. This is a bit of a dilemma for me and I hope someone can come up with a solution. I have been playing for about six months now and built up my fingertip calluses quite well. However last week at my workplace I needed to wear rubber gloves outside as personal protective equipment. It was hot weather (over 30C temperature) and I had to wear them for over 5 hours. I found that my hard earned finger tip calluses softened so much from the heat (and sweat - gross I know). Now I have sore fingertips again and plumped up calluses. Swabbing them with isopropyl alcohol to help dry them out again isn't helping much.