My daughter came home from nursery about three weeks ago with a very nasty insect bite on her leg. It was a big red swollen patch with a blood blister in the middle. It got quite nasty a week later oozing pus as well so I took her to the doctors thinking she was picking it and it was infected. We were given a cream and when the bite died down a bit, formed a scab I stopped applying the cream. We put a plaster on it to stop her picking it. I removed the plaster last night and a bullseye rash has formed around it. Is this lymes disease? I had a fear from the beginning this was a tick bite. I have rung the doctors this morning and they've put me on a triage list and asked me to send a picture.