Bella had a day liek that yesterday... she wasn't crusty or anything, really she was all smiles and playful , but you could see it in her eyes how tired she was.
have you tried a bath?
At about 1am last night I did the whole bedtime bath routine thingy with the lotions and I turned the light down really low and just =rubbed the stuff into her arms legs and belly, she was giggly at first but after a while it zonked her out and finally when I started to rock her she fell asleep.
good luck, days like that are hard hun , hopefully they are few and far between!