Put soap in hot water for about a minute, then apply it on face & scalp. Let soak for no less than 5 minutes (or 1 minute, depending on the soap). Rinse. Do it every day. Suitable oily and/or inflammatory skin.
The soap can cause dryness. Apply a suitable noncomedogenic moisturizer on face & scalp after washing.
I had also begun using Sulfur Soap, which I estimate to account for about 20% of it. Carnivore diet, on its own, is not totally helpful.
I suffered with this condition for over 4 years, and saw plethora of dermatologists (who knew naught but to prescribe ever more antibiotics*; one even had me do low-dose Accutane which lead to chronic dry skin). Then, just within two weeks of going on the carnivore diet (beef, salt and pepper) my symptoms dramatically reduced (down to about 95%*). Over the next years I was to reintroduce several plant foods; and everytime I do, my symptoms would come back in vengeance.