Click on any link below for more information about Sinus related Conditions and Surgeries. Antihistamines, Decongestants and "Cold" Remedies (pdf) Endoscopic Sinus Surgery (pdf) Endoscopic Sinus Surgery Postoperative Instructions (pdf) Endoscopic Sinus Surgery Preoperative Instructions (pdf) Sinus Drainage/Irrigation (pdf) Sinus Infections (pdf)