A sinus infection happens whenever the cavities of the nose get contaminated, swelled, or aggravated, acute healthcare as rhino sinusitis. Sinusitis typically stems from the infection which sometimes lasts until all complications of the respiratory system have passed away. In certain instances, a sinus infection can occur with bacteria, or even with unusual fungus. Additional disorders including asthma, nasal polyps as well as inflammation of the mouth can however lead to sinus chronic complications or pain. Read More.