We rescued two cats (sisters) in August 2019. One of the cats we’ve had a issue with since we had her. When she arrived she would bite and pull a certain patch of her fur out, so it would bald and bleed. We took her to the vets and they said it’s likely to be stress as she had been through a lot. We tried loads of things but ultimately it was put her in a cone until the scab grew out. As soon as we took the cone off, she’s bite again so we took her back to the vets and the cone went back one. They then said she doesn’t seem stressed and that it could be an allergy, so she’s now on hypo cat food and nothing else, as well as having a Pesticide treatment too. She’s had the cone off again for 1 week and she’s doing great but now she’s started to lick herself and now overgroom in the same spot she used to rip her fur out. She’s now on anxiety medication too. She’s in the same routine, has lots of toys and attention, is such a friendly cat and she does stay indoors. any help??