Hi Cath - back again. Here is what it says on the bottle of LACTOFERRIN PLUS "has the proven ability to synergistically strengthen immunity, creating an immune system strong enough to fight off viral, bacterial and parasitic invaders. .. Also has the added property of regulating the inflammatory process." Whenever my husband, and then I took it, in the beginning of symptoms - it knocked out the viruses. My husb. takes it everyday to strengthen his immune system. They sell it at Pro-health. You could look up the ingredients listed there, and check with your Dr.. If she says there is nothing to HARM you, then please think, and pray about taking it. How are you feeling now?? Love, Judy p.s. If you don't feel well enough to look it up, I will write you the ingredients. We need to strengthen your immune system!