I still have that problem with Scrappy 2 , Miquelito and Pouncierge who are friendly , but theres no way that I could ever get them into a carrier and get them in to see Our Vet , or even have him look at them.
I pray that you can calm Jorgie down enough to have him groomed, maybe even a Lion Cut so his fuur grows back in slowly.
Hes a Great Gentle Giant, and it may take time before he trusts and loves you back.