Image may be NSFW. Clik here to view.By Mercura Wang Sinus infections, also called sinusitis, occur when fluid accumulates in the sinuses, air-filled cavities within the facial bones surrounding the nose, allowing germs to grow. It almost always involves nasal passage inflammation (rhinitis), leading many doctors to use the term rhinosinusitis. Sinusitis is a leading reason for antibiotic prescriptions, causing up to […]