Barking cough and wheezing: what to know

A barking cough is usually loud and harsh, while wheezing is a musical or whistling sound, commonly more noticeable when breathing out. Together they can occur with a viral infection, acute bronchitis, bronchiolitis, asthma, or an allergic reaction. Allergic rhinitis may add throat irritation but does not explain every episode. The cause depends on age, timing, triggers, and the examination.

Ask whether the wheeze began suddenly after food, medicine, or an insect sting. Sudden symptoms with facial or tongue swelling, hives, faintness, or vomiting may indicate anaphylaxis and require emergency help.

Sit the person upright, keep them calm, loosen tight clothing, and move away from smoke or a suspected irritant. Follow an existing asthma action plan if one has been prescribed. Do not borrow an inhaler or nebuliser treatment, and do not delay assessment while trying home remedies.

Note whether the wheeze is constant, whether speech is affected, and whether the person can drink. A clinician may listen to the chest and decide whether inhaled treatment, observation, or another assessment is appropriate.

Call emergency services for severe difficulty breathing, blue or grey lips, confusion, collapse, pauses in breathing, or swelling of the mouth or throat. Sudden wheezing after a possible allergic trigger is also an emergency.

Seek same-day medical advice when wheezing is new, persistent, recurrent, accompanied by fever, or interfering with sleep, feeding, walking, or speaking. Infants and people with known lung disease should be assessed early if their usual breathing changes.

Ask what the sound indicates, whether the chest needs testing, how to use any prescribed inhaler, which signs mean emergency care, and whether a trigger such as infection, allergy, or asthma should be investigated.