Both can cause sinus trouble. What to do: Over-the-counter saline nasal drops or saline rinses are your best bet in either situation ... For allergies, an OTC antihistamine nasal spray like azelastine ...
For allergies, an OTC antihistamine nasal ... Both can cause sinus trouble. What to do: Over-the-counter saline nasal drops or saline rinses are your best bet in either situation, Hur says.