Sinusitis is an infection of the sinuses, the cavities found in and around the nasal passages, behind your cheekbones, forehead and nose. It refers to the inflammation of the mucus membranes in the sinuses, often caused by an infection or allergic reaction. In response, they create excess mucus which lead to blockages, causing immense pressure in the head. This excess mucus results in a blocked or congested nose but may also lead to a
runny nose or postnasal drip, which spreads the infection and can lead to a sore throat. But amongst the many aches and pains caused by sinusitis, a sinus headache continues to be the most common gripe.
Sinus headaches are often confused with other headaches that have several similar
symptoms, such as migraines and tension headaches. What distinguishes them are the causes, as well as their treatment.