like Mannatech Immunostart; or Shaklee's immune booster or vrp.com
It sounds like your problem is a weakened immune system, from chronic toxic exposures like mercury or lead or pesticides or etc.
A hair test would be very useful to assess toxic metal exposures and essential mineral imbalances/deficiencies
http://www.vrp.comDo you have dental amalgam fillings?? the largest source of mercury in most people:
http://www.home.earthlink.net/~berniew1/damspr1.htmlThose with several fillings average excreting about 30 micrograms of mercury into the sewers each day, and dental amalgam is thus the largest source of mercury in sewers- all of which in the U.S. have high/dangerous levels of mercury; and thus a major source of mercury in rivers, lakes, bays, fish, wildlife,etc. Over 30% of lakes have warnings of high levels of mercury in fish and similar for rivers and bays
http://www.flcv.com/damspr2f.htmlMost predator species of salt water fish also have high levels of mercury
http://www.flcv.com/flhg.htmlVaccines are the largest source of mercury exposure in children, followed closely in infants by exposure through their mother prenatally or in breast milk
http://www.home.earthlink.net/~berniew1/kidshg.htmland these exposure are documented to cause serious adverse effects to millions
http://www.home.earthlink.net/~berniew1/indexa.html(this site documents the mechanism by which mercury causes over 40 chronic conditons(has over 3000 peer-reviewed references) and also
that many thousands have recovered from these conditions after dealing with mercury exposures and detoxification)