Regarding supportive treatment I think that Guardian Angel may be of use to you if you've not already tried it
http://www.northernparrots.com/guardian ... prod6294a/It has probiotics, prebiotics, energy (I'm assuming they mean electrolytes), vitamins, minerals and digestive support (enzymes?). I have personally not used it myself but I have some at hand should I need it. Very good product from what I have heard!
Fingers and toes crossed for you. Please keep us updated