4.How to tell the difference of sinusitis?

After a flu infection in the form called acute, it occurs when this infection does not pass, prolongs, and new microbes are added to the event. They are sinusitis that can improve within a month. The form called subacute lasts longer, lasts for 1-3 months. If the event exceeds 3 months, it is called chronic.

Acute attacks, which sometimes resolve within 1 month with a short duration, recur 4 times in 6 months and more than 6 times a year. This is also classified as recurrent sinusitis.