PL-14 Allergy Blocker is intended to remain in the nasal cavity for approximately 4 hours post-application. Key safety indicators, including tissue integrity (TEER), cytotoxicity (LDH), cilia ...

His overuse of the product had resulted in a condition called rebound congestion syndrome, caused by inflammation of the moist inner lining of the nasal cavity. Decongestant sprays work by ...

“But when both nostrils are closed during this process, it can create a significant amount of pressure in the nasal cavities, potentially resulting in pain or causing mucus to be pushed back into the ...