I've been having a problem where my hand skin starts to crack and peel on extended climbing trips and I can't get it heal, even by taking several rest days in a row. Instead, it just gets worse and worse until my fingers are constantly raw and cracked, and my skin is peeling off. Also, sometimes my palms turn red and develop tiny bumps.
Here's an example picture fairly early on the process:
The missing skin on my finger tips is not due to flappers. Rather, the skin just starts cracking and peels off. Also, once the peeling starts, it spreads until I lose most of the skin on my fingers, and multiple layers come off in some places. You can also see some red spots on my palm.