Hi Kaleea

have you tried putting a plaster, (Bandaid), with the pad soaked in
olive oil on your finger overnight? ( or even all day if possible).

I have used this idea on dry split lips when regular ointments and
salves have done nothing, and found that the cut heals quickly.

The olive oil does not dry out as ointments do, and it keeps the
skin supple and moist so that it flexes instead of cracking, and
so can heal.

Hope this helps you and others who get these skin cracks.

Cheers

Cattail !