HI Thanks for your reply. She was fine whilst on the antibiotics, firm poo and normal coloured the opposite to most dogs on them I'm sure. The vet has suggested a dry food fish based so we have her on the wainwrights but we have only had a couple of soft poos so maybe its early days and we need to give it more time. Its quite possible she managed to eat cat poo whilst our attention was elsewhere (her favourite snack if she can find it) so this doesn't help. We are adding fresh white fish to the wainwrights from tomorrow and we have pro-kolin to use as recommended by the vet if she continues to be loose. The vet isn't keen to go up the allergy testing route just yet, just wondered if anyone else had similar problems. In the early days with her we put her onto rice and boiled chicken which was catastrophic and any treat we gave her chicken based had the same issues.