Is it safe to have your belly button pierced if you are ill?

Well the piercer would not be too happy if you gave him/her your cold and as a rule professional body piercers like to avoid piercing anyone who may be sick. It loads the immune system down needlessly and again we don't like being sick courtesy of a client who can't keep there cold to them selves. So it's best to wait, get better and then get your piercing.