BSP is a minimally invasive procedure where a flexible balloon is used to open blocked sinuses and facilitate drainage of mucus in patients who suffer from chronic sinusitis. Balloon Sinus Dilation is less invasive than traditional sinus surgery and effective at relieving symptoms of chronic sinusitis. Balloon Sinus Dilation is safe and effective option for many chronic sinusitis patients who are not responding well to medications and seeking relief from uncomfortable and painful sinusitis symptoms.