Sinusitis is the inflammation of sinus cavities due to viral, bacterial, or fungal infection. This causes pressure inside the cavities and results in a headache. Sinusitis can be categorized as acute (the condition lasting up to four weeks), sub acute (which lasts between four and eight weeks), or chronic (present for eight or more weeks) Let’s take a look at how to get rid of sinus headache pain, from both a medicinal and non-medicinal perspective. . . . → Read More: A Look At How To Get Rid Of Sinus Headache Pain