When should you worry about blocked nose if you have allergic rhinitis?

Allergic rhinitis causes the lining inside the nose to become inflamed after exposure to a trigger such as pollen, dust mites, mould, or animal dander. Swelling and mucus can make breathing through the nose difficult, often alongside sneezing, itching, watery eyes, or a runny nose. Symptoms may be seasonal or continue around a household or workplace trigger.

Limit known triggers where practical, keep bedroom fabrics clean, and rinse the nose with a suitable saline solution if advised. A pharmacist or clinician can explain nasal steroid sprays, antihistamines, and correct spray technique. Decongestant sprays should not be used longer than the product instructions because prolonged use can worsen congestion. Seek advice if symptoms affect sleep, exercise, or concentration.

Book an appointment for blockage that does not follow your usual allergy pattern, remains mainly on one side, causes repeated sinus pain, or persists despite appropriate treatment. Seek prompt care for high fever, worsening facial pain or swelling, vision changes, recurrent nosebleeds, or thick discharge with marked illness. Get emergency help for sudden trouble breathing, swelling of the lips or throat, or faintness.

Ask which triggers are most likely, whether your nasal spray technique is correct, and how long to try treatment before review. Discuss asthma symptoms, recurrent sinus problems, sleep disruption, nosebleeds, and whether allergy testing or another diagnosis should be considered.