Sinus infection accounts for close to 16 million office visits per year ( USA ). Sinusitis is more common from early fall to early spring. It is much more common in adults than children. approximately 0.5 % of upper respiratory tract infections are complicated by sinusitis. Acute sinusitis is the second most common infectious disease seen by GPs ( Acute sinusitis Can Fam Physician 2011). This review covers acute sinusitis presentation.