Diphtheria is a treatable bacterial infection. Early symptoms often resemble a cold, including a sore throat, mild fever, chills, and difficulty swallowing. A key warning sign is a thick, grey membrane forming at the back of the throat. Treatment is highly effective, especially when started early, and involves two main types of medication: Diphtheria Antitoxin, given to neutralise the toxin produced by the bacteria. Antibiotics: Generic medications such as penicillin or erythromycin are used to kill the bacteria and prevent them from spreading to others. If you suspect diphtheria, please consult a healthcare professional promptly for a safe and speedy recovery.