I think what Pat recommended about going to behavioralist awhile back I should have done
You have a dog who guards,marks and bites.
He chases his tail and flycatches.Not every solution comes from a pharmaceutical factory. Medications may mask the symptoms and do not address the root cause if it is behavioural.
I agree 100%. You have had some massive medical bills.I'm not sure if you've paid off Ellas?
I certainly do understand that if finances are thin, there is only so much you can do. So even though the neurologist made the suggestion, it's not him paying the bill. I know how important Elton is to you, and I know you will do everything humanly possible to keep him healthy and happy. Don't feel guilty about waiting it out a bit while you wait for the insurance money from the first tests to come back.
If a dog has a serious illness,I can understand how we go the extra mile and give them the best treatment we can and pay what must be paid.
However,you have had some vague suggestions,it " looks like" epilepsy,it" might be" flycatchers,all suggestions but no firm absolute diagnosis.
If he doesn't have a rash,persistent diarrhoea,skin infections or serious reactions,then he can wait a few weeks until you've recovered and your finances are in better shape.
People here have given you some great advice about managing allergies.
Just take care of yourself for a while.Then follow up the referral with the behaviourist.
Sharing my sofa with Holly, Ivy,Lilly and Hazy.. and never forgetting our beautiful Daisy who reached the bridge too soon.