The Swiss Federal Council decided, that entry into Switzerland is generally prohibited (with only few exceptions ). This means, if you are holding a Schengen visa, you are not allowed to enter Switzerland. If you are holding a valid Swiss National visa type D, you are still allowed to enter.
The visa section now processes visa applications for National visa type D. Until further notice, no Schengen visa applications will be processed and no Schengen visa type C will be issued.
For additional information, please consult the webpage of the State Secretariat for Migration SEM.
Kindly consult the webpage of the Embassy of Switzerland, where changes and updates of the above mentioned will be published.