I have used zinc-phos a few times. One was a case of Vitiligo affecting both legs. The patient was walking with a limp, which he had been having for a few years. The limp was due to some sort of weakness of one of the lower limbs I am not sure which one.
I had a tough time with that patient My questions would just not get through to him. I had to repeat the questions a few times and after thinking long and hard he would finally reply with some irrelevant answer. Anyway zinc-phos cured his vitiligo and his limp improved dramatically. But best of all I astarted making sense to him.
I have used it a few other times. If you find the generals of Phos but you feel as if there is a barrier betwen your questions and the patient's mind you can think of Zinc-phos.
Best regards
Elham