after all these years I've worked out what I'm allergic to... FLEAS! of all things to be allergic to and we currently have them so now I have to go crazy getting rid of them for mine and my cats sanity grrrr
Powdered boric acid is the ticket. If you have carpeting, nothing works as well. As a bonus it's completely non-toxic to cats and dogs, but it will kill fleas and many other insects. Good luck! Getting rid of those evil things is a real chore.