Many of the signs and symptoms we worry could mean COVID are also very common of other milder, seasonal ailments, like allergies or a cold. And according to experts, one symptom in particular may not be worth worrying over if it is the only symptom you have: sneezing.
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The Centers for Disease Control and Prevention (CDC) has generated a list of coronavirus symptoms—and while they note that it's not comprehensive, it does include most of the common symptoms, such as fever, cough, shortness of breath, loss of taste or smell, headache, and fatigue. While congestion or runny nose is included on the list, sneezing is not.
According to the CDC, sneezing is considered a common symptom of a cold and a flu symptom sometimes. If you have a cold, you are likely to experience a sore throat and runny nose first, followed by sneezing and coughing. The Mayo Clinic says that the flu may also have these symptoms—making it seem like a common cold at first—but the flu will develop suddenly while a cold usually develops slowly.
Sashini Seeni, MD, a general practitioner of medicine at DoctorOnCall, says "sneezing is more likely to be a manifestation of cold, influenza infections, and allergies." And when comparing symptoms of COVID and seasonal allergies, the CDC says sneezing is more likely a symptom of seasonal allergies than it is of the coronavirus.
Seeni says it's important to take note of the other symptoms you have alongside your sneezing. If you experience "sneezing followed by itchiness, watery eyes, inflamed or swollen body parts," you're most likely just dealing with allergies.
Alongside allergies, colds, and the flu, sneezing can also be brought on by your environment. Marc Goldstein, MD, a board-certified allergist and chief medical advisor at Curist, explained in an article for Curist that sneezing can be the result of colder weather. According to Goldstein, cold and dry air can irritate your nasal passages and this can cause you to sneeze.
"It is rather unlikely to have a single symptom associated with COVID-19," Seeni says. "This is due to the fact that viral infection tends to spread across the whole respiratory system, triggering lung-related ailments, and at the same time, [eliciting] systemic body response such as fever when the virus is exposed to our immune system."
You should expect to have some of the other coronavirus symptoms listed by the CDC if your sneeze is COVID-related and you are symptomatic. However, Seeni emphasized that it's impossible to be certain, so if you want to know for sure whether or not you have the virus, you should seek out a COVID test.