Fungal and bacterial acne. For this?

I was prescribed benzoyl peroxide in the past and it was helping but I kept getting breakouts still and a dermatologist friend suggested that I try anti dandruff shampoo on face and my face suddenly cleared up and I figured I had yeast growth. No history of acne previously. It started last year in winter when I was getting the worst dandruff of my life due to high stress from toxic friends. I am working on fixing my diet and eating healthy, exercise, sleep, hydrate , taking therapy etc I use fungal acne safe skincare routine. But I noticed that with fungal acne I'm stuck in a spiral . My acne gets better in just two days of using ketoconazole shampoo on face but it makes my skin very dry but if I skip it even a day I breakout again. What's the solution for this?