What causes cold and flu?
Cold and flu are caused by germs that make their way into your body through your eyes, nose or sometimes by rubbing your eyes. Both colds and flu are caused by viruses that thrive in the moist cavities of your nose and sinuses, as well as your lungs and throat. Millions of people suffer from colds and flu every year, and while most people get better over time, some go on to develop serious complications.
What are the symptoms of cold and flu?
At first, colds and flu can feel the same; but over time, each has different symptoms that can help your doctor determine the best way to treat you. If you have a cold, you can expect symptoms such as:
- Sore throat
- Stuffy or runny nose
- Coughing and sneezing
- Mild fatigue
- Mild headache
- Sometimes, a mild fever
Flu symptoms tend to be more severe and widespread and may include:
- Extreme fatigue that may last for two weeks or more
- Dry or “rattling” cough
- Muscle aches
- Headache
- Fever and chills in many cases
- Sore throat
Both colds and flu are more common during the winter when people are confined more to indoor spaces, and both can spread through the air and by contact with contaminated surfaces.
Should I see the doctor when I have a cold or flu?
Even though you may think you just have a “little sniffle,” colds and flu left untreated can result in more serious conditions, including pneumonia, respiratory infections, sinus infections and ear infections. Seeing a doctor for an initial evaluation is the best way to make sure you’re doing all you can to speed up your recovery.