If a patient comes in with an ailment and a remedy is prescribed that removes the ailment, I call that a cure. If s/he comes back later with the same ailment, I presume that s/he is reinfected or the ailment has returned because the patient's lifestyle has not changed - ie if he is living in a damp basement which gave him rhumatism and goes back to live there, he is bound to get it again. The answer would be to ask him to live elsewhere, but if he cannot do that, the remedy will have to be repeated and repeated (with the damp basement in mind - which may suggest another remedy) until his immune system becomes robust enough to counter the rhumatism.
If the patient returns with another ailment, well it is a different ailment and so will have to be addressed as such. No one says that if once cured with homeopathy, the patient will never get another ailment for the rest of his life.

Jeff Tikari