How to Treat or Cure Diphtheria

Diphtheria can be cured - but only with early hospital treatment, and the outcome depends heavily on how quickly antitoxin is given. Here is what proper treatment looks like, step by step.

Step 1: Treat it as an emergency. A suspected case - grey membrane in the throat, swollen neck, hoarseness, noisy breathing - goes straight to a hospital with ICU support. Call 102 or 112. Do not try home treatment first; delay is what turns a curable illness fatal.

Step 2: Diphtheria antitoxin, early. On clinical suspicion alone, doctors give diphtheria antitoxin, usually intravenously after a sensitivity test for the horse serum it is made from. The dose depends on how long the illness has run and how extensive the membrane is. Antitoxin neutralizes only the toxin still circulating in the blood - which is why doctors give it before lab reports return.

Step 3: Antibiotics. Penicillin or a macrolide such as erythromycin or azithromycin, typically for 14 days, kills the bacteria, stops new toxin production and makes the patient non-infectious. The full course must be completed.

Step 4: Protect the airway. If the membrane threatens breathing, the team secures the airway - occasionally with an emergency procedure. This is one reason diphtheria is treated only in equipped hospitals.

Step 5: Weeks of careful recovery. The worst dangers come after the throat improves. Patients stay on strict bed rest with heart monitoring because myocarditis peaks in the second week, and they are watched for the later nerve complications - nasal regurgitation from palatal paralysis, then limb weakness. Exertion during this window can be fatal.

Step 6: Finish the job. Follow-up throat cultures confirm the bacteria are cleared (a second antibiotic course if not); the patient is vaccinated after recovery, since the disease does not reliably immunize; and close contacts are examined, cultured, given preventive antibiotics and a booster if due.

With early treatment, most patients recover fully, including from the nerve complications. Without it - or with treatment started late - diphtheria still kills 5 to 10 out of every 100 patients, and more among small children. The difference is measured in hours.