Maxillary Sinus infection is the inflammation of the maxillary sinus, the largest of all the nasal sinuses, the area located just behind your cheekbones. It's one of the most common sinus infections. Thick, infected nasal drainage liquid gets trapped in the large maxillary sinuses, unable to flow out freely due to obstructed swollen nasal tissues. Maxillary Sinus Infection has multiple causes. The most common are bacterial, viral, allergenic, fungal and also caused by poor dental health. Even case of a simple cold or light flu, allergies or sinusitis can result in a bad case of maxillary sinus infection, causing sinus infection pressure, sinus headaches and overall discomfort. One is advised to see a physician if your sinusitis doesn't improve overtime, so he can diagnose the condition and prescribe proper treatment. It's very important to maintain healthy teeth and gums, as sore gums or cavity affected teeth can create perfect breeding conditions for the development and spreading of the sinus infection. Read more