Do you have a cold or the flu? How to tell the difference

You may find yourself reaching for kleenex and a thermometer this fall, a sure sign that cold and flu seasons are back.

As temperatures begin to drop, the illnesses will begin to spread. But you can help protect your health by getting vaccinated this season, experts say.

Here's what to know about the illnesses cause by viruses.

When does the flu season start?

The flu season begins in the fall , typically in October, according to the Cleveland Clinic. Flu season tends to peak in the winter months, between December and February, per the Centers for Disease Control and Prevention.

What causes the flu?

The flu is a common respiratory illness you get from the influenza virus, the Cleveland Clinic said.

How long does the flu season last?

Flu season lasts into the spring, usually slow