Q. I took my cat to the vet and was given a clean bill of health, yet she is still peeing on my bed. She also has a bad case of dermatitis, no fleas help
A. They can do this due to stress, if something has changed in the environment, a new cat in the area or a new member of the family or even furniture, sometimes even washing or cleaning products. You need to try and work out what is causing the issue and eliminate it or introduce calming pheromone diffusers. Cleaning the soiled area with cleaning products may be causing the problem. You are better off disposing of the bed sheets and starting again.