Thanks for all your replies.

When she was in the cattery we actually took our own food and biscuits so I dont think its a food allergy (which is good news as we've tried her on the sensitive food and she won't touch it!!).

The vets have mentioned a series of tests I can have done but she can't have those yet as she's recently had the steroid injection and apparently it can affect the results. She is insured but as she was treated for this prior to us taking the insurance out then it doesn't cover that particular illness! Typical!

I've had a look round on the net at different things and one thing I've found is 'hot spots'. The info I've found is mainly on dogs but a lot of what I've read sounds like what Tillie has. Has anybody heard of 'hot spots' or have a pet that suffers with it.

I've got home from work tonight and its worse than it was this morning - poor little thing!