Itchy throat, cough and asthma: what to know

Asthma involves sensitive, narrowed airways. Coughing may be worse with exercise, cold air, smoke, respiratory infections, or at night, and some people also notice wheezing or chest tightness. An itchy throat alone does not establish asthma. Allergic rhinitis can cause throat itch and cough through nasal drainage, and a common cold can temporarily inflame the throat and airways. Food allergy needs urgent attention when symptoms begin after eating and include hives, swelling, vomiting, wheezing, or breathing difficulty.

Record what happens before each episode, how long it lasts, whether a reliever inhaler changes breathing, and whether symptoms wake you. A clinician can use this pattern to decide whether lung-function assessment or another evaluation is needed.

Avoid tobacco smoke, incense, aerosols, and other known irritants. Drink fluids and manage nasal allergy symptoms with advice from a pharmacist or clinician. If you already have an asthma action plan, follow it and use prescribed inhalers exactly as directed; do not borrow someone else’s inhaler. Keep a record of night symptoms, activity limits, and medicine use for your appointment.

Seek emergency help if breathing is severely difficult, speech is limited by breathlessness, lips look blue or grey, you feel faint, or a prescribed reliever is not helping as directed. Arrange prompt review for repeated night cough, wheeze, chest tightness, reduced exercise tolerance, or symptoms after a new food or medicine. A sudden swollen throat or face is also an emergency.

Ask whether the cough pattern suggests asthma, allergy, reflux, or infection; how to recognise your personal warning signs; whether you need an action plan; and how to use each inhaler correctly.