FUSION Allergy Nasal Spray (20ml). Preservative free nasal spray for the treatment and prevention of allergic rhinitis symptoms like running nose, itching nose, and nasal congestion.. Preservative free. Suitable for all ages including infants. Suitable for Nasal allergic rhinitis symptoms like running nose, itching nose, and nasal congestion. Contains 2% Ectoin to help protect from harmful allergens.. Comes in an easy to use 20ml dispenser