Swimming is not recommended during the rabies vaccination, but it is not a problem to swim after the rabies vaccination, and for the vast majority of people who go swimming right after the rabies vaccination, they do not experience any discomfort. The reason swimming is not recommended is that some people may have adverse reactions after rabies vaccination. These adverse reactions may be a slight redness or swelling at the injection site, and swimming may cause a bacterial infection to develop in this area, but this is also very unlikely. In addition, some people who receive rabies vaccine may experience a slight fever, which is similar to a small cold, and if they perform more physical work such as swimming, they may make their weakness more pronounced or cause their fever to get worse. So in this respect swimming is not recommended.