Hi!
I know you're not doctors- I have been to the doctor about this recently and the doc said he thinks (but isn't sure?!) that this is a wart and to just leave it be.
Does this look like a wart or shall I get a second opinion? She's 4 for reference and it started off as a tiny spot.
It doesn't bother her at all or bleed etc!
Sorry for the orange teeth, I had to give wotsits to keep her still enough to focus the camera 😅