Thanks for the tip! I get so confused with all the different things that are suggested..I have been sick for months and desperate for resolve..Doctors say I am fine, healthy as a horse actually! Tons of labs, allergy tests, ct scan..all look fine. I have read lots about C.Silver and saw it the other day at the local health store, but the sales clerk recommended Grapefruit see extract over the C. SIlver! I have used it for 2 days and idk as there is any improvement?..Maybe worse! Will be getting some C. Silver after the holiday for sure!!