Asthma and a blocked nose at night

The nose and lungs form one connected airway. Allergens or infections may inflame both areas, so nasal congestion can occur alongside cough, wheeze or chest tightness. Lying down may make swollen nasal tissue and mucus more noticeable. Bedroom exposure to dust mites, mould, pets, smoke, incense or strong fragrances can add to irritation.

Allergic rhinitis often presents with blockage plus sneezing, itching or watery discharge. A cold can bring a sore throat and changing nasal discharge, while sinus inflammation may cause facial pressure or reduced smell. Loud snoring, pauses in breathing or marked daytime sleepiness warrant assessment for a sleep-related breathing problem rather than being attributed only to congestion.

Keep following the prescribed asthma plan and check that inhaler technique is correct. A saline nasal rinse or spray can loosen mucus; use sterile or previously boiled and cooled water for rinsing devices and clean them as instructed. Reduce bedroom triggers that match your pattern, such as keeping pets out of the sleeping area, addressing dampness, washing bedding regularly and avoiding smoke or fragranced products.

A clinician or pharmacist can advise whether a nasal steroid, antihistamine or another treatment suits the suspected cause and your other medicines. Frequent use of some decongestant nasal sprays can cause rebound blockage, so follow the labelled duration and professional advice.

Use your asthma action plan and seek urgent help if breathing is rapidly worsening, speaking becomes difficult, the reliever inhaler is not helping as expected, lips look blue or grey, or you feel exhausted, confused or faint. Arrange a routine review when blocked nose repeatedly disrupts sleep, asthma wakes you, reliever use is increasing, symptoms are mainly on one side, or facial pain and fever persist.

Describe when congestion begins, what happens in the bedroom, whether symptoms vary by season, and whether you snore or wake gasping. Ask whether your pattern fits allergy, infection, sinus disease or a structural nasal problem; which nasal treatment is compatible with your asthma medicines; and whether your inhaler technique or action plan needs adjustment.