Single best way to prevent seasonal flu is to get vaccinated each year.40
Washing your hands often will help protect you from germs, making it a reliable precaution of cough measure. If soap and water are not available, use alcohol-based hand rub. 40
Physical fitness is also key to taking precautions against cough. Investing in 45 minutes of moderate-intensity exercise 5 days a week has shown a significant decrease in self-reported colds per year.39
Avoid close contact with people who are sick. When you are sick, keep your distance from others to protect them from getting sick too.40
Touching something that is contaminated with germs and then touching your eyes, nose, or mouth will lead to the spread of germs.40
Get a lot of sleep, manage your stress and drink a lot of fluids to prevent the flu.40,41
Follow a healthy diet which includes a variety of fruits, vegetables, and whole grains. It also includes lean meats, poultry, fish, and fat-free or low-fat milk or milk products.1