Don't have any personal experience but a close person to me has worked as a nurse in a nursing home and also in a hospital here in the German speaking part of Switzerland.
What I've heard is that at least in these two places foreigners are considered as second-class people and - in case you only speak High German - some of the locals might shut you off completely by refusing to speak nothing but Swiss German with you. Coffee room conversations are one thing but they might even do this during official status meetings.
Also, be very careful when discussing nursing practices with the locals. The way they do things is the best in the world and they only get offended if you tell them how things could be done differently.
The good thing is that there will be lot's of other foreigners there with you so you can form an alliance with them (have you watched
Survivor by the way?).
You need to get your credentials recognized by the Swiss Red Cross and the qualifications you get here might be a bit lower than the ones you have in your home country. You also might need to do some additional training. There are also language requirements (at least B2 in one of the local languages). But after this you get to do the exact same things as the locals.