Cough, hoarseness and sore throat: what to know

Cough, hoarseness and sore throat often reflect irritation or inflammation in the throat and voice box, commonly during a respiratory infection or after reflux, allergies or voice strain. Hoarseness means the voice sounds rough, weak or breathy; a cough is the body's reflex for clearing the airway; and a sore throat is pain, scratchiness or discomfort when swallowing. The three symptoms may appear together because the same irritation affects nearby tissues.

A Common Cold, Influenza or COVID-19 can irritate the upper airways and produce cough and throat discomfort; fever, tiredness, blocked or runny nose and body aches may also occur. Allergic Rhinitis can cause drainage from the nose into the throat, which may trigger coughing and repeated throat-clearing. Acid Reflux can irritate the throat and voice box, sometimes causing hoarseness or cough that is more noticeable after meals or when lying down. Tonsillitis, Strep Throat and Glandular Fever are other possible causes of throat pain, particularly when swallowing is difficult or the neck glands are swollen.

Symptoms can also follow shouting, singing, prolonged talking, dry air, smoke or other irritants. A symptom pattern does not identify its cause by itself. A clinician may need to ask when it started, examine your throat and breathing, and consider testing when an infection is suspected.

Rest your voice and use a normal, quiet speaking volume rather than whispering, which can strain the voice. Drink fluids regularly, choose warm or cool drinks that feel soothing, and use a humidifier if indoor air is dry. Avoid smoking, vaping and smoky spaces. Honey in a warm drink may soothe a cough for adults and children over one year; never give honey to a baby under one year. Saline nasal rinses can reduce nasal mucus and drainage when allergies or a cold are contributing.

Follow the label or a pharmacist's advice before using pain relief or cough medicines, especially for a child, during pregnancy, or if you have another medical condition. Antibiotics do not treat every cause of cough or sore throat and should only be used when prescribed. If reflux seems to trigger symptoms, avoid lying down soon after eating and discuss recurring symptoms with a clinician.

Seek urgent medical help for trouble breathing, blue or grey lips, inability to swallow saliva, rapidly increasing swelling in the mouth or neck, severe dehydration, confusion, or a cough producing significant blood. A child who is struggling to breathe, unusually drowsy or unable to drink needs prompt assessment.

Arrange a medical review if symptoms are worsening, swallowing becomes increasingly painful, fever is persistent, the cough keeps disturbing sleep, or you have a weakened immune system or a long-term lung condition. Hoarseness that does not settle, keeps returning, or occurs with a neck lump, unexplained weight loss or pain when swallowing should also be assessed.

You could ask: What is the most likely source of the throat irritation? Do I need a throat swab or another test? Could reflux, nasal drainage or an allergy be affecting my voice? Which medicines are suitable with my current conditions and treatments? What changes should prompt an urgent review, and when should persistent hoarseness be checked?