HI... welcome and congrats on getting through this! Yikes.... I wish I could suggest something with regards to the Erbitux. I would try chapstick (weird I know) on your hands... my hands spontaneously split too some times (not related to Erbitux - just my skin!). Chapstick really helps them~ Also I'm almost afraid to say it... a manicurist... a good one, with sterile instruments, and who knows how NOT TO CUT you. May help there is a way they can trim your remaining nails to help prevent ingrowns. But that said you have to be very careful of infection so this may be a risk you shouldn't take. Congrats on the remission~ Hopefully someone else will come along with better suggestions. But I did want to say HI!