I'm so sorry to hear about your frustration and difficulty in all of this. Poor Jasper . I wish I knew more to suggest, but I really don't. I know my Willie had a flea allergy, he used to get fleas in Missouri and get horrible raw wounds on him from their bites and then he wouldn't leave them alone.

Then Advantage came out and we got a lot of relief from that, and then I moved to Minnesota where I never have had problems with fleas since.

I remember how horribly frustrating it was though and how miserable it was for Willie. I truly hope you are able to find a solution for Jasper.