I started using the nasal rinse bottle about a week ago and it seems as if my post-nasal drip has gotten worse. What do you think is happening? And ho

Sinus Rinse and the neti pot should help reduce post nasal drip. If you experience the problem immediately after rinsing it could be excess drainage from the saline solution. If you are still experiencing the problem a week later, if could be the result of an infection or allergy and you should speak with your physician.