Sinus Infections
Did you know that the sinus infection you’d been battling for some time might have been passed on by someone else? As the Asthma and Allergy Foundation of America says, most cases of sinusitis are only caused by viruses.
Hanging out with someone who is sick or even just touching a contaminated surface might be a cause for this uncomfortable infection. A viral sinus infection is much more common than a bacterial one.
If you have viral sinusitis, the virus infects the lining of your facial and nasal cavities. In most cases, it is caused by a viral upper respiratory infection.