Nasal congestion with allergic rhinitis

Congestion may affect both sides, fluctuate with exposure, and occur alongside sneezing, nasal itching, watery discharge, or itchy eyes. Reducing triggers, rinsing with saline, and using suitable allergy treatment can help.

The blockage is not simply trapped mucus. An allergic response makes blood vessels and tissues inside the nose swell, narrowing the air passages. Lying down may make this sensation more noticeable, and mouth breathing can then cause a dry mouth, poor sleep, or throat irritation.

Persistent obstruction can have other explanations. Thick discharge with facial pressure may fit sinus inflammation, while blockage mainly on one side can reflect a structural problem, a polyp, or another local cause.

Limit exposure to a recognised trigger where practical: close windows during dusty conditions, shower after heavy outdoor exposure, and keep smoke and strong fragrances away from sleeping areas. A sterile, ready-made saline product can loosen mucus and wash irritants from the nose.

A corticosteroid nasal spray may reduce allergic swelling when used regularly and with correct technique. Direct the spray away from the nasal septum. Use decongestant sprays only for the period stated on the label because prolonged use can cause rebound congestion.

Book a clinical review if congestion remains troublesome despite appropriate self-care, repeatedly interrupts sleep, or comes with reduced smell, recurrent nosebleeds, ear symptoms, facial pain, or discharge that concerns you. A clinician can inspect the nose and reconsider the cause.

Get urgent care if nasal symptoms accompany severe breathing difficulty, swelling of the mouth or throat, confusion, or faintness. Wheezing and chest tightness require prompt attention, especially if a reliever inhaler is not helping as expected.

Describe whether the blockage changes by location, season, time of day, or side of the nose. Ask whether your pattern suggests allergy testing, a check for sinus disease, or an adjustment to your nasal treatment.