Cold-induced asthma cough

Cold, dry air can irritate sensitive airways. A viral cold can also increase airway inflammation, causing cough, wheeze, chest tightness or shortness of breath. Symptoms may appear during outdoor exercise, at night, or after moving between warm indoor air and a cold environment. Asthma commonly presents with cough or wheeze, but a cough can also have other causes such as Allergic Rhinitis, reflux or a lingering infection.

Pay attention to a pattern: what exposure started the cough, whether it improves indoors, and whether a reliever inhaler helps according to the prescribed plan. A cough lasting several weeks deserves review even if breathing feels comfortable.

Follow the written asthma action plan and take controller treatment as prescribed. In cold weather, cover the nose and mouth loosely with a scarf to warm inhaled air, breathe through the nose when possible, and warm up gradually before outdoor activity. Avoid smoke, vaping aerosols and known allergens. Keep prescribed inhalers available, check their technique and expiry, and seek advice if the usual reliever is needed more often than your plan allows.

A clinician may check your breathing, review inhaler technique and decide whether testing or a treatment adjustment is needed. Nebuliser Treatment is used in selected situations under medical guidance; do not substitute it for an emergency assessment.

Use your asthma emergency instructions and seek urgent care if breathing is rapidly worsening, you cannot speak comfortably in full sentences, lips look blue or grey, you feel faint or confused, or the reliever is not helping. A severe episode can worsen even when the cough seems like the main symptom. Arrange a routine review for repeated cold-triggered episodes, night waking, exercise limitation or a cough that does not settle after the infection improves.

Ask: Is cold air, infection, allergy or another cause driving my cough? Is my inhaler technique correct? When should I use my reliever, and what is my personal emergency plan? Do I need a review of controller treatment or breathing tests? Mention night symptoms, exercise symptoms and any workplace or home exposures.