I would head to the hospital as if he cant keep down his antibiotics then he cant fight the infection, and if he cant keep down fluids he will be getting dehydrated. They may need to admit him and administer fluids and medicines via a drip?? Maybe.
like MLHCB Im not a nurse either but thats what I would do.
Hugs to you all
Mr J (April 2005) Miss Z (Feb 2007) and Miss O (Oct 2010)