Hamster cut herself

Question
I've had my Syrian hamster in this particular cage or several weeks now and haven't had a problem. I just came upstairs to take her out and let her play, when I noticed blood on the bedding, and it was more then just a few dribbles. I looked at her and it appears she's cut her paw on something, but she won't let me get a good look because she has to be standing on all four of them at the same time. I'm asking what should I do. Should I change  the bedding, or put something on her foot?

Answer
The first thing I would do is check her wheel and the cage for sharp edges. You should change her bedding and remove whatever is sharp or put her in another container until you can.
I really don't know what you can put on her foot that she won't lick off so you should call the vets tomorrow and ask them about an antibiotic to give her in her water or by drops in her mouth to keep the foot from becoming infected.

You should learn how to scruff your hamster so you can turn her over and look at her feet or her belly.

But call the vet's first thing in the morning.