Ah, winter a time where we find ourselves constantly asking if were sick or if its just a reaction to the weather and all that comes with it. And during the coronavirus pandemic, those average winter symptoms feel even more alarming.

As we go into these winter months, symptoms may be due to different things and lines get blurrier, said Stephanie Christenson, a pulmonologist and assistant professor in the division of pulmonary, critical care, allergy and sleep medicine at the University of San Francisco. But were also seeing surges in COVID-19 all over the country, so theres a greater chance of getting infected. Being as diligent as possible is so incredibly important.

To clear up confusion about whether your symptoms should raise a red flag for COVID-19, we asked experts to share other potential causes of coronavirus-like symptoms. Heres what to look out for and advice on how to stay safe this winter.

Breathing cold, dry air

Dry air and freezing temperatures can dry out your airway which includes the nasal passage and part of the throat and cause discomfort, producing a cough, runny nose or nasal congestion. Wintry air can also compromise the moist protective lining in your airway, added David Serota, an infectious disease physician in Miami.

When these areas dry out, viruses and bacteria are better able to latch on and develop an infection, Serota said.

Christenson said to monitor a cough, runny nose, sore throat or nasal congestion that may occur after breathing cold air outdoors. If it is solely due to the cold air, these symptoms should resolve after a day or two.

Indoor and outdoor allergens

As we stay indoors more to escape the cold, we face extended exposure to allergens such as dust mites, mold, pet dander and more, said Gerald Lee, an allergist and immunologist in Atlanta.

Dust mites are commonly found in beds or circulating through your homes heating and cooling system. Humid or damp areas like trash cans, kitchens or bathrooms can harbor mold, as can a fresh Christmas tree and leaves or soil in your garden. Some places have trees that pollinate in the winter months, so those allergic to pollen can continue to experience symptoms, Lee said.

Even for people who do not have allergies, some are sensitive to wood smoke and fragrances from candles and other indoor perfumes.

Most of the respiratory symptoms like nasal drainage, cough, potentially sore throat, potentially sinus issues and headaches associated with sinus issues could be seen in an allergy or COVID-19, Lee said. If you have an itchy nose or itchy eyes, this is more likely an allergic reaction.

Lee pointed out that sometimes allergy-related sinus issues can decrease your sense of taste or smell, but its not stark or sudden unlike losing taste or smell due to COVID-19. The loss of taste or smell experienced by COVID-19 patients usually feels highly unusual to them.

Ultimately, if youre unsure whether your symptoms are from allergies or a virus, Lee encouraged seeking clarification from a doctor.