I havnt been feeling great for the last month. I had a bad flu that developed in to a chest infection and I was on antibiotics for 2 weeks. I was fine for about 1 week then got the cold again. Its not as bad the last one. I was just wondering could anyone advise me what to do as all as the doctors seem to do is put me on antibiotics. I think i need vitamins or something to build me up abit as I think my immune system is low. Could anyone recommend anything? Thanks.