Question Author
hi everyone, once again many thanks for the answers and the concern! I took Bandit to the vets yesterday and he confirmed it probably was a cat scratch or bite that has got infected. He has given her antibiotics for 5 days and told me to bring her back if it does not clear as another possibility could be teeth problems. At the moment she is lying in the back garden enjoying the sunshine and the swelling is going down slightly. Oh yes the vet advised that with abssess like this, they swell up, burst, drain and then swell up again, so it is normally best to get the animal to the vets for antibiotics. Once again many thanks.
Cheers
Sue