Help! Idk what it is.

A week ago, I noticed a scab on her head but it was nothing bad, just a tiny cut. I thought maybe when she was with family, she fell and hit her head on the corner of something. (She’s almost 2 years old, kids fall and gets cuts all the time)

Then just the other day I went to go brush her hair and she said “ow” and started crying and I was like “what’s wrong” so I was like maybe that scab is still there. So I looked and found it looking like this. Has anyone seen anything like this before? It’s very warm to the touch and very raised also.