Tincture of benzoin. apply, let dry, cover with a glove or bandage and let it sit over night, wash off in the morning, repeat the next night as necessary. that stuff has a way of making skin tougher. and stop picking at your skin. also a good daily moisturizer in the morning goes a long way to keep skin healthy enough to withstand bass playing during the day. avoid anything with petroleum and/or alcohol. hemp oils, coconut oils, jojoba, try to find plant based stuff. plenty of options out there.
justinplaysbass dot com
pickersdelight dot com