The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
In Chinese Medicine diphtheria can be treated by two herbs that we have on record. Here is the list below.
Because it is a herb specifically indicated to treat diphtheria as can be seen on Verbena Leaf's page.
Its main actions are: Clears Heat and dispels toxicity. Moves Blood and unblocks Stasis. Encourages urination and lessens edema.
Because it is a herb specifically indicated to treat diphtheria as can be seen on Dwarf Lilyturf Root's page.
Its main actions are: Replenishes Yin Essence and promotes secretions. Lubricates and nourishes the Stomach. Soothes the Lung. Nourishes the Heart.