Have you tried a holistic vet??
There is a doctor in BC - Dr. Peter Dobias, who has a series of 3 articles about urinary incontinence in his website, worth the read
Are you in Malta, Montana or Republic of Malta?
Dogs don't need to talk, their life is their message ~ unknown.
"The greatness of a nation and its moral progress can be judged by the way its animals are treated." ~ Mahatma Gandhi