Influenza Facts: What You Need to Know About the Flu

Every winter you hear about the flu, but most people only know the basics. This page gives you the straight‑forward facts you need to spot the virus early, avoid spreading it, and bounce back quickly. No medical jargon—just the info that matters to everyday life.

Common Symptoms and When to Seek Help

The flu usually hits fast. You’ll feel a sudden fever, chills, body aches, and a pounding headache. A sore throat and a dry cough often follow, and many people notice a runny or stuffy nose. Unlike a mild cold, the flu makes you feel wiped out within a day or two.

If you notice any of these red flags, call a doctor right away: difficulty breathing, chest pain, sudden dizziness, or a fever that stays above 103°F (39.4°C) for more than three days. Young children, older adults, and anyone with chronic conditions (like asthma or diabetes) should get medical advice early, because complications can turn serious fast.

How to Prevent and Treat the Flu

The single best defense is the flu vaccine. It’s updated each year to match the strains that are expected to circulate, and even a partial match can cut your risk by half. Get the shot before the flu season really ramps up—usually by October.

Beyond vaccination, simple habits go a long way. Wash your hands often with soap and water for at least 20 seconds. If soap isn’t handy, use an alcohol‑based hand sanitizer. Avoid close contact with anyone who’s coughing or sneezing, and cover your own mouth with a tissue or your elbow when you cough.

If you do catch the flu, rest is key. Stay hydrated with water, broth, or electrolyte drinks, and take over‑the‑counter pain relievers like ibuprofen or acetaminophen to lower fever and ease aches. Antiviral pills (such as oseltamivir) work best when started within 48 hours of symptom onset, so see a doctor quickly if you qualify.

While you’re recovering, keep the virus from spreading. Stay home from work, school, or social events until at least 24 hours after your fever breaks without medication. Disinfect high‑touch surfaces—doorknobs, phones, and remote controls—daily.

By knowing these influenza facts, you can protect yourself and the people around you. Remember: the flu is common, but it’s also preventable. Stay informed, get vaccinated, and act fast if symptoms appear—that’s the smartest way to keep the flu at bay.