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Symptom checker: COVID-19, allergies, cold or flu?

A illustration of human lungs.

Are you feeling under the weather? Use this chart to check your symptoms against COVID-19, allergies, cold and flu.

Your symptoms may differ. Call your doctor if you're concerned about any unusual or severe symptoms.

Reviewed 10/7/2020

Which is it: COVID-19, Allergies, Cold, or Flu?

Cough

  • COVID-19: Common
  • Allergies: Rare
  • Cold: Common
  • Flu: Common

Shortness of breath

  • COVID-19: Sometimes
  • Allergies: No (unless it triggers asthma)
  • Cold: No (unless it triggers asthma)
  • Flu: No (unless it triggers asthma)

Sneezing

  • COVID-19: No
  • Allergies: Common
  • Cold: Common
  • Flu: No

Runny or stuffy nose

  • COVID-19: Sometimes
  • Allergies: Common
  • Cold: Common
  • Flu: Sometimes

Sore throat

  • COVID-19: Sometimes
  • Allergies: Sometimes (usually mild)
  • Cold: Common
  • Flu: Sometimes

Fever

  • COVID-19: Common
  • Allergies: No
  • Cold: Sometimes
  • Flu: Common

Fatigue

  • COVID-19: Common
  • Allergies: Sometimes
  • Cold: Sometimes
  • Flu: Common

Headache

  • COVID-19: Sometimes
  • Allergies: Sometimes
  • Cold: Rare
  • Flu: Common

Body aches

  • COVID-19: Sometimes
  • Allergies: No
  • Cold: Sometimes (usually mild)
  • Flu: Common

Diarrhea

  • COVID-19: Sometimes
  • Allergies: No
  • Cold: No
  • Flu: Sometimes (in children)

Nausea or vomiting

  • COVID-19: Sometimes
  • Allergies: No
  • Cold: No
  • Flu: Sometimes (in children)

Loss of taste or smell

  • COVID-19: Sometimes
  • Allergies: Rare
  • Cold: Rare
  • Flu: Rare

Chills

  • COVID-19: Sometimes
  • Allergies: No
  • Cold: No
  • Flu: Sometimes

Take action!

Call 911 if you or a loved one has emergency warning signs for COVID-19. These include trouble breathing, lasting pain or pressure in the chest, new confusion, trouble waking up or staying awake, and bluish lips or face.

Your symptoms may differ. Call your doctor if you're concerned about any unusual or severe symptoms.

Sources: American Academy of Allergy, Asthma and Immunology; Asthma and Allergy Foundation of America; Centers for Disease Control and Prevention; World Health Organization 

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