Does allergy medication help with blocked nose?

Antihistamines mainly reduce histamine-related symptoms such as sneezing, itching and a runny nose. A corticosteroid nasal spray works on inflammation and may be more useful when congestion is the main problem, but it needs regular, correct use rather than occasional spraying. Saline rinses can wash away mucus and irritants. A blocked nose from a cold, sinus problem, structural narrowing or another cause may need a different approach.

Ask a pharmacist to match treatment to your symptoms, age, pregnancy status and existing medicines. If using a nasal spray, aim it slightly away from the middle wall of the nose and follow its instructions. Do not use decongestant nasal sprays longer than the label advises, because congestion can rebound. Saline spray, fluids and avoiding known triggers may complement treatment.

Arrange medical advice if blockage lasts beyond a typical cold, affects sleep repeatedly, is mainly on one side, or comes with facial pain, reduced smell or recurrent nosebleeds. Seek urgent care for facial swelling, severe headache with fever, vision changes, or breathing difficulty. A clinician can examine the nose when medication is not helping.

Ask whether the blockage fits allergic rhinitis, which nasal treatment is suitable, and how long to try it before review. Mention other symptoms, prior nasal surgery, pregnancy, glaucoma, high blood pressure and every medicine you take.