Our expert says:
I suspect that your old St Bernard may have a condition called Nasal Hyperkeratosis. This condition may be the result of the following : congenital (developmental), nutritional, metabolic, traumatic, neoplasia, infectious or immune mediated. A diagnosis can be confirmed on history/clinical examination with the addition of nasal biopsy’s and histopathology. The treatment will depend on the clinical findings and biopsy results.
Please discuss this condition further with your local vet and see what he/she suggests.
I hope this helps
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