@Rosie no nothing still in there. The mark in the middle is a scab
There’s not many things that would do that but if it was a couple days ago, looks like your body is fighting off an infection of sorts. Take care, and if you start feeling unwell, feverish etc. pop to the GP and get seen.
It could be a horsefly bite. They can be quite nasty! You can try putting a cold, wet cloth or ice pack on it and take antihistamines for the itching.
Could be loads of things unfortunately. Mosquito, horsefly, spider
Horsefly, I get them a lot, and they look just like this. Try not to scratch it so much as it will get worse. Take antihistamine, and hopefully it will ease off.
Is it a tick? Is it still in there?