Allergic rhinitis with a deviated nasal septum

Allergic rhinitis can cause sneezing, itching, a runny nose and swelling inside both nasal passages after exposure to triggers such as dust mites, pollen or animal dander. A deviated nasal septum, often shortened to DNS, means the wall dividing the nose sits off centre. When allergy-related swelling develops in an already narrow passage, blockage may feel stronger on one side. Mouth breathing, disturbed sleep, reduced smell or facial pressure can accompany persistent obstruction, but these symptoms can have other causes too.

Notice where and when symptoms flare, then reduce avoidable exposure to the likely trigger. Saline nasal rinsing can clear allergens and mucus; use sterile, distilled, or previously boiled and cooled water and keep the device clean. A clinician or pharmacist can explain correct use of an antihistamine or corticosteroid nasal spray. Aim the spray slightly outward, away from the septum, and use it consistently as directed. Decongestant sprays can cause rebound blockage when overused, so check the label and seek professional guidance. If obstruction remains troublesome after allergy control, an ear, nose and throat assessment can clarify whether the septum or another nasal problem needs treatment.

Arrange a routine appointment if blockage disrupts sleep, repeatedly affects daily activities, remains mainly one-sided, or does not improve with correctly used allergy treatment. Seek prompt care for swelling around an eye, severe facial pain, high fever, repeated heavy nosebleeds or worsening symptoms after a nasal injury. Call emergency services for severe breathing difficulty, faintness, or swelling of the lips, tongue or throat, as these can signal a serious allergic reaction.

Ask whether your examination suggests allergy-related swelling, structural narrowing, sinus inflammation or a combination. You can also ask for a demonstration of nasal-spray technique, advice on identifying triggers, and the signs that would justify referral to an allergy or ear, nose and throat specialist. Mention snoring, pauses in breathing during sleep, reduced smell and any medicines already tried.