First, perhaps you could clarify what you mean by therapy dog.
In Switzerland there are recognized 'Sozial Hunde', a program developed where dogs help people who suffer from a wide range of difficulties. Typically PTSD, anxiety, etc. These dogs go through a rigorous traning program.
Three groups that train these dogs are:
Therapiehunde Schweiz:
https://www.therapiehunde.ch/de/
LeCopain:
https://www.lecopain.ch/en/
Blindenhunde Allschwil:
https://www.blindenhundeschule.ch/sp...nd-sozialhunde
(They train not only guide dogs for the blind but also assistance dog, autism support dogs, and social assistance dogs)
There are other groups as well, these two are a good place to start your research.
Take a gander at these sites to see what is involved in training a recognized therapy dog.
The Blindenhundschule offers an open day, where the public can learn more about training these dogs. (At least they did pre-COVID). You might contact them to see if another will take place soon. A good way to learn more from the true experts.
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There is also a growing trend of 'self taught' assistance dogs. Now... while some of these programs are very good indeed, I must warn you that there are also organizations that are nothing more than scammers - yes, here in Switzerland. If you are thinking of going this route, you must do your due diligence!
Not every dog is temperamentally suited to be a therapy dog - in fact most aren't. Not every temperamentally suitable dog makes it through training. If you are thinking of going the self-taught route, first a deep dive into the subject is recommended.
(The rescuer in me of course is thinking: What would you do if your dog turned out to be wholly unsuitable to therapy work?)
Be aware that self-taught assistance dogs - while an absolute godsend to those who rely on them - are generally not recognized here. An owner of one of these usually faces the same restrictions as any other run of the mill dog owner. I believe only recognized therapy dogs are granted wider access.
There is a long running thread on ESAs that you should read. I won't link it because I don't want to dredge up all that ugliness - but you can easily find it via a search. That thread makes for rather disheartening reading, and unfortunately the nastiness of some of the posts pretty much mirrors attitudes found among the general Swiss public. That thread might give you insights into the kinds of prejudice you could face here in Switzerland.
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I think, but am not sure, that some of the training organizations retain ownership of the dogs.
FYI, I believe Swiss insurance generally only helps defray some costs for guide dogs for the blind. Costs for other categories of assistance dogs, recognized or not, are born by the owner. (If anyone has any better information, please correct me!)
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My experience with therapy dogs is second hand; we were fortunate to have the support of two fantastic dogs and their owner/trainer to help comfort my father who suffered from Alzheimers. (This was in the US.)
These two dogs were amazing. The were able to calm my father when nothing else could, they could reach him long after he lost verbal ability and cogniition. These dogs were trained specifically to work with Alzheimer's patients; I understand the training program was intense. It would have to be, given the disease.
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Trained therapy dogs, and the people and organizations who train and support them, are a godsend to those in need. Thank doG for these angels, two and four footed!
Wishing you all the best.
ETA:
I seem to remember that an EF member is involved in therapy dog training. I hope that person, if still around, sees this thread.