What should you know about diphtheria treatment and prevention?

Clinicians may test throat samples and assess breathing, swallowing, and other signs of toxin-related illness. Antibiotics help clear the bacteria and reduce spread. Severe illness may need hospital monitoring and treatment directed at the toxin, while close contacts may need assessment and preventive care.

Vaccination prepares immune defences before exposure. It does not replace treatment when infection is suspected, and previous vaccination does not make new warning symptoms safe to ignore. Learn more through [Antibiotic Treatment](/treatments/medical-management/antibiotic-treatment/) and [Childhood Immunisation](/treatments/preventive-care-and-vaccination/childhood-immunisation/).

If diphtheria is suspected, phone ahead before visiting a clinic so staff can arrange appropriate precautions. Avoid close contact and sharing personal items. Keep your vaccination record available, list current medicines and allergies, and follow the prescribed antibiotic course exactly if treatment is provided.

People who have been in close contact may need evaluation even without symptoms. Ask the healthcare team whether testing, preventive antibiotics, vaccination review, or temporary separation from others is appropriate.

Call emergency services for difficulty breathing, noisy breathing, drooling, inability to swallow, rapidly worsening neck swelling, fainting, or confusion. Seek same-day medical care for a sore throat with fever after exposure, a grey coating in the throat, or unusual weakness.

Ask what tests are needed, whether hospital observation is required, how long precautions should continue, whether household contacts need care, and when your vaccination record should be reviewed.