there can be many things here. are you spending more time on the rock than your mates, ie are you having 10 goes on something they do second go? 3 full days on granite is a lot of climbing. there are a lot of remedies out there. the ones that i think work are none of them.
as is piss ??
Alum works, as does Anti-hydral 'der sportichplan fer der tuffer tips'
elizibeth arden 8 hour at night