SynRinse Irrigation Pilot (SIP) Trial

"Non-CF Cohort The first 10 non-CF subjects will be instructed to once daily irrigate both nasal passages with SynRinse (supplied) delivered via nasal irrigation using the NeilMed® Sinus Rinse™ system for 1 week. The subjects will be asked to refrain from performing any sinus irrigations during the test treatment period with any product including saline.~The second set of 10 non-CF subjects (if the study continues to this point) will be instructed to irrigate both nasal passages twice daily (rather than once daily) for one week with SynRinse (supplied). The subjects will be asked to refrain from performing any sinus irrigations during the test treatment period with any product including saline.~CF Cohort The first 5 subjects in the CF cohort will irrigate with with SynRinse delivered via nasal irrigation using the NeilMed Sinus Rinse system for 1 week. The second set of 5 subjects with CF will irrigate both nasal passages twice daily for one week with SynRinse."