There is no reason to pulse herbs. And that's not me speaking, but Master Herbalist Stephen Buhner:
"herbs are composed of scores to thousands of substances, many of which possess synergistic functions with the other substances in them."
"It is very difficult, perhaps impossible, for a bacteria to develop resistance to such complex substances as herbs. The thousands of constituents and their synergistic actions are just too complex as opposed to a single substance like an antibiotic."
buhnerhealinglyme.com/herbs/herb-resistance/The Master Herbalist that I used to heal the first time around also said the same thing - bacteria can't build resistance to herbs because they are too complex.
I don't believe that alternating between treating two different infections is doing you any good either. I would encourage you to have her explain her reasoning for doing this at minimum.