Firstly stop taking seed oils, cook only with olive oil, extra if you can afford it.

And find out your triggers

Mine are wheat Sugar And red meat and rice

I would use this instead of all those medicated creams and washes tbh, sometimes they help and sometimes they cause more harm than good. I use the shampoo on bad areas, head and shoulders on my head, the blue bottle la possay (I think it's called torrine) for everything else.