If you don’t want to go through the horrible symptoms of the flu, like fever, coughing, headaches or nausea, there are a few measurements you could take in advance to reinforce your immune system and to avoid the contact with dangerous germs.

(yes, I have a big headache right now.)
First of all, you should ensure your daily necessary vitamins. For that, you should eat more fruits and vegetables.
You could also drink homemade smoothies, they’re delicious and super good for your health. You can also reinforce your immune system through sport.
People who do physical exercises manage to keep the flu away. Workouts help you get rid of the extra fat, and that can have a big say in how fast you get sick.
A study has revealed that overweight people are more likely to get the flu. Even 20 minutes of simple workout can be helpful.
Besides that, it is very important for you to respect hygiene rules. Doctors recommend that we wash our hands before every meal or snack and after using objects that usually contain many microbes.
For example, if you usually take the bus, don’t forget to wash your hand on the first occasion, because think about how many people have had their hands in there.
Avoid crowded places. I’m not suggesting that you should isolate yourself in order to not get sick. But extra crowded places, especially the closed ones, can be a source of infection for those who have a higher risk of catching the flu.
So you should avoid going at commercial centers or at the cinema on rush hours. You can choose to do your shopping or enjoy a movie when it’s less crowded.