You administer the different potencies, repeating the same potency until it does not act any longer, and then going higher, until you have gone through the whole range of potencies.
You can repeat that remedy many times on a paucity of symptoms, when you cannot give another remedy, simply because it has demonstrated itself to be the patient's constitutional remedy.
This remedy should not be changed so long as the curative action can be maintained.
Even if the symptoms have been changed do not change the remedy, provided the patient has continuously improved.
It is a rule after you have gone through a series of potencies, never to leave that remedy until one more dose of a higher potency has been given and tested.
But when this dose of a higher potency has been given and tested, without effect, that is the only means you have of knowing that this remedy has done all the good it can for this patient and that a change is necessary.
J.T. Kent, Lectures on Philosophy