I don't know if I can be of help, I hope so!

First a very good web site for photos, to see if the red eye problem matches:

http://clawedfrogs.tripod.com/

and

http://fluffyfrog.com/FrogPondVetF.html

And a site where you can order special food:

http://www.xenopus.com/index.html

I hope somehow this can help - I imagine you may already know of these.

Also, you may want to find an exotics/amphib vet near you from a list at this site:
http://www.herpvetconnection.com/

I pray the little fellow gets well.