Sinus infections themselves aren’t contagious, but the viruses that cause most of them are. Viral sinus infections often follow colds or flu, which spread through respiratory droplets when someone ...
Allergies and sinus infections have overlapping symptoms, but are caused by different things. Allergies happen when your immune system reacts to something harmless, like pollen or dust, as if it's ...
There are some real reasons your cold is lingering: The first cause of a lingering cold ... “This happens when the congestion from a cold causes the right environment for bacteria to grow, causing a ...
They found that post-COVID symptoms listed by the World Health Organization (WHO) are commonly experienced by those who have recovered from COVID-19 infection, the most frequently reported ...