Cold and flu season is here; always a challenge for parents to keep their kids and themselves from getting sick.

FOX's Lisa Brady has a survival guide in this "FOX and Family":

How to keep your family healthy during cold and flu season to help boost immunity, don't let you or your kids get run down:

(Dr. Siegel) "Stay bundled up, stay out of the cold, eat properly, sleep properly and keep your stress level down."

Doctor Marc Siegel with the FOX News Medical A Team also says fight the germs by washing hands:

(Dr. Siegel) "Johnny is wiping his nose on the chair behind him, that hasn't changed since you and I were in school, so the problem is we have to think of it as a world community, we're a public health community."

He still recommends getting a flu shot:

(Dr. Siegel) "Don't think, oh I should have had it in October, that's when we pushed, it's too late now. No it's not too late now, now is even the best time to get it because the flu season is starting to peak."

Doctor Siegel also urgents parents to be on the lookout for even the slightest changes:

(Dr. Siegel) "They may not get fever right away, but if your kid isn't behaving properly; they're a little lethargic, not quite themselves, that may be a clue that something's coming on."

And catching it early can make a big difference, especially if it's the flu.

With FOX on Family, I'm Lisa Brady.

Follow Dr. Marc Siegel on Twitter: @DrMarcSiegel