Sudafed Congestion Relief Nasal Spray provides rapid relief from allergy congestion. This spray can help your congestion in three ways: unblocking your nose, draining congestion and easing breathing through your nose. When pollen in the air causes your nose to become congested and you find it difficult to breathe, this nasal spray will help to clear a stuffy and blocked nose. It moisturises and soothes a dry nose, making a painful and sore nose better. This product can be used alongside Benadryl Allergy Relief.