Vitamin C for whooping cough: what to know

Whooping cough, also called pertussis, is a bacterial infection that can cause repeated coughing bouts and sometimes a noisy intake of breath. Vitamin C cannot remove the bacteria or reliably shorten the illness. A supplement may be unsuitable for some people, and large amounts can cause digestive upset, so check with a clinician before using one.

Coughing can continue after the infection becomes less active because the airways remain irritated. Fever may occur, but its absence does not rule out whooping cough. Infants, older adults, pregnant people, and anyone with breathing or immune problems may need especially prompt assessment.

Contact a clinician if you or your child has a persistent or spasmodic Cough, especially after contact with someone who has pertussis. Follow prescribed treatment exactly; Antibiotic Treatment can reduce spread and may help when started early, although it does not instantly stop every cough.

Offer suitable fluids, allow rest between coughing episodes, and avoid smoke or strong fumes. Keep the person away from vulnerable contacts until a clinician explains when close contact is safe. Check immunisation status with the team providing Childhood Immunisation.

Get urgent help if breathing is difficult, the lips or face look blue or grey, pauses in breathing occur, the person cannot drink, becomes unusually sleepy, or repeated coughing causes vomiting or collapse. A baby with poor feeding, fewer wet nappies, or breathing pauses needs immediate assessment.

Ask whether testing is needed, when antibiotics should start, how to reduce transmission at home, whether vitamin C is appropriate with existing medicines, and which breathing changes require emergency care.