Oh sci all I can say is OUCH. I am fair with reddish hair too and know the family skin concerns. Fortunately my only problem is an itchy occasionally bleeding keratosis on my shoulder blade.
I like the squirt bottle recommendation. I always say the hadheld shower sprayer is my best friend. I don't know if this will help, but I have also found eye saline or nose saline spray really nifty to have to help gently clean up. This low salination stuff actually is really soothing on the splits at the base of my tags (which ps have the same issues as you mentioned in your "crack"post hehehehe).
Really glad you are keeping a close eye on your skin. Take Care.