Never hurts to boost your overall resistance and sufficient vitamin C along with NAC as mentioned certainly can play a big part in Fighting the flu virus!
Just ran across the following article by Dr. Andrew W. Saul what seems to confirm the effectiveness of vitamin C. Along here NAC (N-Acetyl Cysteine) deserves also to be mentioned a precursor to a very potent anti-oxidant glutathione, which is also used as an antidote against acetaminophen, as well as many other poisonous substances.
Comment: Dr. Andrew W. Saul, an international expert on vitamin therapy, says: “The coronavirus can be dramatically slowed or stopped completely with the immediate widespread use of high doses of vitamin C. Bowel tolerance levels of C taken in divided doses throughout the day, is a clinically proven antiviral, without equal.”
Fighting the flu virus, this may include the new corona virus as well. A while back when the H-1 N-1 virus was active (2009) some one from the medical profession suggested the use of a good dose of NAC or N-Acetyl Cysteine along with a healthy dose of buffered ascorbic acid (Vitamin C-about twice as much C as NAC) and it appeared to work like a charm.
I’ve upped my vitamin C to 2000mg per day. I hope that is good enough. I may have to stock up on more vitamins.
I got shingles right before I was going to have surgery. I upped my vitamin c to 1 gram every hour. My shingles were gone in a week with no after effects.