Cranky baby

My little one has come leaps and bounds in crying since we sorted out her dairy intolerance (she used to cry 5-10 hours a day - now almost never!) but in the last 1 to 2 hours before bed time (immediately after her last nap) she's very whingey. Anyone have any tips for what settles their little one when they're a bit fussy in the evening? We've noticed a nice bath and keeping the lights dim helps but that's about it. Can't keep her in the bath for an hour! Hahaha!