How to tell the difference between allergies and a virus

Jason Liu, MD

Internal Medicine

Distinguishing between seasonal illnesses and viruses such as COVID-19 can be tricky because the symptoms can be similar. Jason Liu, MD, shared ways you can tell the difference.

• Allergies generally do not cause a person to develop a fever or aches and pains, but will cause symptoms such as:
  • Sneezing
  • Itchy eyes
  • Runny or stuffy nose
• Common cold symptoms include:
  • Mild fatigue or weakness
  • Stuffy nose
  • Sore throat
  • Mild to moderate cough
• Flu symptoms are more severe, with symptoms such as:
  • High fever
  • Aches and pains
  • Extreme fatigue
  • Chest discomfort
• COVID-19 symptoms are:
  • Fever
  • Dry cough
  • Shortness of breath
  • Recent loss of smell and/or taste

If you believe you have COVID-19, take these steps:

• Start with a free Prisma Health eVisit or call your primary care provider. You will be advised what to do next.
• Call ahead before visiting any Prisma Health location.
• Do not go to the Emergency Department for COVID-19 testing.
• If you have a medical emergency, call 911.

Dr. Liu said, “It’s time to seek emergency care if you’re having difficulty breathing, persistent chest pain and pressure, bluish lips or face, or confusion.”

For more information, visit PrismaHealth.org/Coronavirus.