Benadryl Natural Relief Nasal Spray helps unblock your nose and provides natural congestion relief by washing away irritants. It helps to minimise the symptoms associated with allergies, such as a runny or blocked nose. This preservative-free isotonic saline solution is used for treating blocked, dry or irritated nasal passages caused by allergies (including hay fever). Benadryl Allergy Natural Relief Spray provides an instant cleansing effect by cleaning and moistening the nasal passages and flushing allergens out of the nose.