I was told- by others on one of these sites, that if I were to become ill while on prednisone (only 5MG daily) that I am supposed to contact my pcp immediately. Is this true? I know that prednisone makes the immune system weaker, but other than that.... what changes? In most cases, is it something I can wait out and see if it gets better? How sick are you supposed to be before contacted your doc? Just asking as it seems many of the people I work with are coming down with a nasty stomach bug and just would like to know should I also get it. Thanks everyone!