We've had great success with this simple remedy. It is available at our local Wal-Mart.
It would be a good idea to stock up. Start taking it at the very first sign of flu-like illness.
Headed out to find it this morning. Was going to go in the middle of the night last night....but thought better of it because of crime, etc. Hubby said no when I roused him to tell him I was ‘headed to the store’ at 3 this morning...lol.