The keto and/or carnivore diet might help with this from the root level.

And here are some other things people do about oily skin.

Treatment
1. Wash your facefrequently. Share on Pinterest Using warm water and a gentle soap to wash your face can help reduce the amount of oil on your skin.
2. Make use of a toner. Alcohol-based astringent toners tend to dry out the skin.
3. Face should be patted dry.
4. Blotting papers and medicated pads should be used.
5. Apply a facial mask.
6. Use moisturizers.

I haven't consumed dairy for 3 weeks and my fat has decreased but very, very little, just like the acne that has accompanied me all my life. If this doesn't work, I'll cut the flour even though it's more difficult to leave it.

Hello, thank you for your advice, it helps me too.

I have avoided dairy products and I can observe (in the distant term) that my back has less acne, unfortunately at Christmas time I consume them again, currently I have reduced the consumption of flour. I can't figure out if it's due to consuming less dairy, exfoliating your back with a special brush, or applying an antibacterial soap to your back. One of those 3 cases may be the cause of less acne

Discarded step: antibacterial soap did not reduce acne on my back and chest