
Ask your vet to test for Eoncepylic (sp) Granuloma I have had 2 dogs with it but it is so very very rare vets don't often look for it.
They can take a biopsey of an ulcer and test that way. it is not curable but can be controlled in most cases. Huskys and Cavaliers are I believe the only recorded breeds suffering from it in dogs but this may have changed recently
I will try and find you some more info on it.
Bev