I have no medical background, but I do have an active boy that has hit his head numerous times...on things like concrete

I was told to watch for vomiting, to watch them for the first 24 hours really well, liquid coming out of an ear or nose is bad and if she falls asleep, you must nudge her every two hours or so to check she is o.k. and not completely passed out. I hope she feels better. My DD hit her head, in the eyebrow at 2. I still feel really bad, she has a little scar. Kids are tough.