brandoncolorado 0 Posted November 6, 2007 Hi everyone, I have been taking ampicillin for a number of years, twice a day at 500mg. It has worked wonders on my body acne. I went to my new dermatologist this last time and he switched me to once a day. Now my acne is coming back. Has anyone else taken ampicillin for this long? If I continue taking it for a long time, do I grow a resistance to just ampicillin, or to all antibiotics? What should I do Quote Share this post Link to post Share on other sites
