the come back of a bad habit

I know exactly how it happened.She was teething and I can't help but pick her up every time she cries while she's in her crib.So now after months of hard work I'm back to waking up between 5:30-6:00 to feed vaness. and then put her back to her crib so she can go back to sleep.She used to sleep from 7:30-7:00am but now...I have to deal with that early morning thing.I would have wanted to try the reassure with no reward approach except that for sure she will cry and wake Joel up.I guess I'll just have to deal with this.At least she doesn't wake up in the middle of the night.