Just keep playing. They'll harden up. I go through the same thing all the time.
I get so wrapped up in recording other instruments that the guitar gets put aside for a couple of weeks. Then it's time to play again and it hurts like hell for a few days.
Once you get playing again you'll start noticing skin peeling away on your fingertips cause you shredded em up... you pick it off and it heals and hardens underneath causing callouses... a week later you can tap your fingers on a table and they make a clicking sound.
Do a ton of bends and slides, that'll get em whipped up pretty good.