Re: Can I deduct medical bills paid in Germany from Swiss taxes?
Normally, it only becomes an issue if the total costs of illness, which you pay yourself, exceed 5% of your income. Under that, these costs are generally not deductible. Also, pure cosmetic work is not tax deductible.
I can't see it makes a difference where, or in which country, the work is done. The main thing is to have all the accounts in case someone wants to check them.