I think I have a poor immune system caused by possibly herpes type 1 or something else that I don't know about yet. I get sinus infections, lung infections, bladder infections/ Urinary tract infections, yeast infections and vaginal bacterial infections. If it isn't one thing it's the other. I can't remember I time that I haven't at least had one. I think what I am doing now is helping a bit though. It's just scary when I feel one coming on. Thank you for responding.