Is It a Cold or the Flu?

Is It a Cold or the Flu?

Sometimes it's hard to know if you have a cold or the flu. Here's some help checking your symptoms and deciding what to do.

Flu/Colds

How can you tell if you have a cold or the flu? And what should you do?


It's difficult because the symptoms of a cold and the symptoms of the flu are often similar, such as cough, runny nose and sore throat. However, there are differences.

Here are some differences:

  • Cold symptoms usually come on slowly, with mild symptoms like a cough, runny nose and sore throat.
  • People with a cold can usually function with their symptoms—but it's better to stay home if you're sneezing and coughing to avoid spreading germs.
  • The flu usually causes a fever, headaches, chills and aching muscles and joints. If you have the flu, it's important to stay home to avoid spreading the virus. Like a cold, flu can last a week or two. The flu may be contagious starting a day before symptoms appear until a week after becoming sick—possibly longer in children.
  •   The flu typically hits people like a fast-moving train with a rapid onset of symptoms like profound fatigue, where just getting out of bed is an ordeal. 
  • The flu may cause nausea and vomiting, especially in children, but those symptoms do not necessarily indicate flu.

What to do?

  • First of all, it's not too late to get your flu shot.
  • Always listen to your body. If you're experiencing severe symptoms, contact your health care provider.
  • For the very young, the very old and pregnant women, the flu can cause severe complications like pneumonia. It can even be fatal. Read more about pregnancy and the flu.
  • Wipe down potentially germy surfaces like grocery cart handles, airplane trays and the backs of airplane seats behind the trays.
  • Prevent the spread of colds and the flu by washing your hands and using tissues for coughs and sneezes.
  • Keep your immune system healthy all year round and especially this time of year. That means plenty of sleep; reducing or eliminating alcohol, smoking or vaping; and eating nutritious meals.
  • If you don't feel well for any reason, make sure you stay hydrated.
    • Drink honey and lemon tea and water.
    • Eat juicy melons, grapes and other foods with high water content.
    • Eat good old-fashioned chicken soup and other soups such as hot-and-sour soup and wonton soup.
  • For sore throats, gargle with warm saltwater. The salt helps clear the mucus film coating the throat and helps your immune system fight the microbes causing your symptoms.
  • Rest, rest, rest and more rest. Did I mention rest?
  • If you want to try supplements, these may boost your immune system:
    • Tumeric
    • Zinc lozenges and throat spray

This blog originally appeared on Nurse Barb. Barb Dehn is a women's health nurse practitioner, award-winning author and nationally recognized health expert. She practices with Women Physicians in the Silicon Valley of California.

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