How long are you contagious when you have a sinus infection?

A sinus infection caused by a viral infection lasts about seven to 10 days, meaning you’ll be contagious with the virus for up to two weeks. If your symptoms last more than 10 days, or if they subside after a week then return again a few days later, you likely have a bacterial sinus infection that cannot be spread.

Can you catch a sinus infection from another person?

If you are experiencing a viral sinus infection, you can’t spread the infection to others, but you can pass along the virus. Someone who catches the virus from you is then at a higher risk of also developing a sinus infection. You may be contagious for up to two weeks. Sinus infections can also be caused by bacteria.

Should I stay home if I have a sinus infection?

Sinus infections can be viral or bacterial. “Either way, it’s best to stay home,” Wigmore says. Viral sinus infections are often contagious. If you have had symptoms longer than one week, or if you have severe facial pain, teeth/jaw pain, or fever, you may have a bacterial infection and should consult your doctor.

How did I get a sinus infection?

Sinus infections happen when fluid builds up in the air-filled pockets in the face (sinuses), which allows germs to grow. Viruses cause most sinus infections, but bacteria can cause some sinus infections.

How do I know if I have a sinus infection or Covid?

“COVID-19 causes more of a dry cough, loss of taste and smell, and, typically, more respiratory symptoms,” Melinda said. “Sinusitis causes more discomfort in the face, congestion, nasal drip, and facial pressure.”

How do you check for a sinus infection?

Nasal endoscopy. A thin, flexible tube (endoscope) with a fiber-optic light inserted through your nose allows your doctor to visually inspect the inside of your sinuses.
Imaging studies. A CT scan shows details of your sinuses and nasal area.
Nasal and sinus samples.
Allergy testing.