One remedy vs multiple remedies?

[merrynb]

Dr Jeff/Christina, I wonder if you could comment on this. My impression is that we are looking for one remedy that best fits all the symptoms.

In practise, is only one remedy usually necessary? Or sometimes multiple remedies?

(I am personally struggling to find single remedies that address everything I've noticed)

If multiple remedies are sometimes needed, why is that? And how does treatment proceed in practise?

Some examples would be helpful

Thanks : )