Bullseye like mark around vein on foot.

Yes good advice here, I know someone with Lymes Disease who had to go abroad to get it treated. It's something I am very aware of living near two Royal Parks inhabited by Deer. I read about Matt Dawson, it's a very nasty condition. Time is of the essence in getting it looked at.

Good luck OP don't delay.

Matt Dawson Lyme diseases after being bitten in London Park

I too would ignore that dodgy advice and get it seen. My late SiL developed Lyme Disease and it went undiagnosed for ages. It left her with a weakened heart which eventually killed her.

janet I would ignore 111’s advice and if your GP can’t see you today, go to a walk-in urgent care centre.
This article explains about Lyme disease and contains a photo of a tick bite.
www.google.co.uk/amp/s/amp.theguardian.com/lifeandstyle/2017/aug/22/bitten-tick-prevention-symptoms-treatment-lyme-disease

Definitely get someone to look at it. I went to th GP yesterday with something that turned out to be nothing but he said he was pleased I came.

I've heard that tics that cause Lymes Disease leave that mark. Please get it looked at as soon as possible OP.

Thank you all for replying.

I rang 111 in the end, they said get it looked at if it's not gone in 3 days, it has faded a bit today and I can see thepuncture marks of a spider bite, time to hoover the corners :-D.

Best get it checked. GD got a tick bite last year on holiday, DS went to vets and bought a gadget for removing them from dogs and it did the job.

DamnitJanet, get it checked. Maybe try the pharmacist first, ours is excellent as a first port of call.

Tick bite?
Not sure , found this on Dr Google though
What Does a Tick Bite Look Like?
Ticks aren’t like bugs that bite you and then fly away or scoot off. When one gets on your body, it sets up camp. It finds a place to eat, then burrows its head into your skin and starts feeding. And it’ll stay there for several days.

Most likely, you won’t feel anything because the bite doesn’t hurt, and it isn’t usually itchy. Because ticks are often very small, you might not see it either. At first, it might just look like a fleck of dirt. As it feeds though, it swells up and can be easier to find

There were also some pictures but they were Lyme disease but I would definitely get it checked out. .

Best get it checked, better safe than sorry.

Sounds like a tic bite. Get your doctor to have a look.

I would see a doctor in case it is a tic bite.