since I am getting ready to travel by airplane and so many people are sick (and airplane air is recycled), I am getting worried about catching something....so I was wondering if anyone has ever used those face masks that Drs use? I know I will get some weird looks, but it would be worth it if it prevented getting sick. If anyone has used them, where do you get them? Also, any other suggestions for preventing catching a bug would be welcome. I know the obvious - wash your hands, take Vitamin C, & zinc, try to get enough rest, but anything else?