CRS symptoms in children can be mild and uncharacteristic. The disease is multifactorial, and therefore requires a multifaceted, multidisciplinary approach. Treatment of CRS in children is difficult, infections often recur, and treatment methods are often ineffective. In children, surgery is performed infrequently, only when other therapies have failed. The first stage of surgery is adenoidectomy. Functional endoscopic surgery of the paranasal sinuses may be considered if no improvement of the patient after exhausting all possibilities of conservative treatment.