Big hard red mark on face - help!!

Cristina • 👸🏾 23.05.13 | 👶🏽 07.07.18

A big red mark appeared on my one year old daughter’s face. She’s going through a hitting herself and head butting the floor phase so when it first came up yesterday, I thought that maybe she’d hit herself with a toy and somehow I just hadn’t noticed; but now I don’t think that’s the case.

The mark is still there and RED. When I touch it, it feels firm...

Does anyone have any idea what this could be?

I’m going to take her to get seen by a doctor but I can’t stop thinking about it and I’m getting really worried. I’ve tried to find info online but all that comes up is stuff to do with rashes.

She wouldn’t stay still for a picture earlier so this is the best I could get

UPDATE: I’ve found something called “Erythema Nodosum” and I feel like this might be it... if anyone has any experience of this to share or any other possibilities I’d really appreciate it.

It’s not a bite. It’s been 3 days and it’s bright red with no entry point or surface damage.

Thank you x