Woke up from scratching my neck with a burning feeling

Last night I took a shower & fell asleep with wet hair. I was probably itching throughout the night on my neck. This morning, I was itching my neck & it started to hurt really bad so I looked at it.

This is the first picture I took at around 8:15am. (There is some kind of cream on it so that’s why it’s shiny) I also put ice on it.

This is what it looks like now (around 12pm). Idk, maybe from excessive itching? It feels warm & hot to the touch.

Anyone have an idea of what it could be? I didn’t see any type of bite marks either. If it is still like this tomorrow, I will be going to a doctor to check it out