Is it a cold, allergies or COVID-19? Dartmouth-Hitchcock explains how to tell the difference

Beth Darling administers the COVID-19 vaccine to Ruth Howard. Photo/Andrew Sylvia

LEBANON, NH โ€“ With spring upon us, it may be harder to distinguish seasonal allergy symptoms from those of a cold or COVID-19. Unfortunately, there is a gray area of symptoms that overlap all three conditions that include congestion, cough, sore throat, runny nose and fatigue.

โ€œAllergies can develop at any stage of life, but if you donโ€™t typically experience seasonal allergies and have congestion and a runny nose, I recommend being tested for COVID-19,โ€ said Jonathan B. Thyng, MD, medical director at Dartmouth-Hitchcock (D-H) Nashua. โ€œWe recommend COVID-19 testing even if the symptoms are very mild, as the medical community is working to identify and isolate anyone with COVID-19 to prevent infection of medically vulnerable and unvaccinated people.โ€

Infographic/CDC

So how can you tell the difference? Thyng recommends taking the following into account when you start experiencing symptoms that could be either allergies or COVID-19.

 

  • Remember the โ€œBig Threeโ€: Approximately 80 percent of people with COVID-19 will experience at least one of the โ€œBig Threeโ€ symptoms: fever, cough and shortness of breath. Itโ€™s also common for COVID-19 to cause muscle and body aches, a loss of taste and smell and/or gastrointestinal symptoms, especially diarrhea and nausea. Vomiting is less common. Allergies do not cause fevers.
  • Are these typical allergy symptoms? The itchy, watery eyes and sneezing that accompany allergies are not COVID-19 symptoms. If you are a regular seasonal allergy sufferer and experience these symptoms during the same time each year, you will likely know the difference.
  • Get a COVID-19 test: Ultimately, this is the best way to determine if youโ€™ve contracted COVID-19. D-H recommends testing even if symptoms are mild, as the medical community is working to identify and isolate anyone with COVID-19 to prevent infection of medically vulnerable and unvaccinated people. Rapid tests are not as effective at identifying COVID-19 as PCR tests, especially when someone has mild or no symptoms. Sometimes they provide false negatives, but any positive rapid test results can be trusted. D-H only performs PCR testing, which is more accurate with results available within 24 hours.

If you are unsure whether you have a cold, allergies or COVID-19, contact your health care provider to speak with a triage nurse and work through the symptoms. Itโ€™s critical not to ignore any unusual symptoms as we continue to combat the pandemic. And full vaccination against COVID-19 is the best way to prevent being infected and rule it out as a cause for symptoms.

Click here for more information about the similarities and differences among colds, allergies and COVID-19


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