OP here, Mother Dirt ads are what gave me the idea for her to try it. Mother Dirt is just too expensive for us. Plus I read about it on a forum for the illnesses our other DK has. As PP suggested, she is taking probiotics internally as well. We all take them off and on with DK who has to take daily.
She is 16 and since last summer has had horrible breakouts which she spreads unfortunately. She is also in an activity where she sweats alot.
Here's the link to Primal Defense probiotics which our other DK has to take daily while on long term antibiotics. They are a super high quality probiotic that look brown like dirt in a gelatin capsule,
https://www.amazon.com/Garden-Life-Primal-Defense-Capsules/dp/B000GWG8FS
She also did wash her face with Cetaphil and rinse well with water before she did the mask. She then took 1 capsule, pulled it apart, added some tap water to make a paste and spread it on her face. 1 cap was enough and she had a bit left over. She sent me a snapchat and it looked like a thin coating with more on the 2 trouble spots - looked like cysts.
She says she left it on for 30-60 minutes - didn't pay close attention to time I guess. She is away training for the summer so I had told her to rinse off immediately if she felt it was irritating in any way. She said she had no reaction. She then did not wash her face until 24 hours later and just used Cetaphil only. I agree with PP who said you have to avoid overwashing with harsh soaps. The probiotics must have time to grow and repopulate on the skin.
She said it was visibly much better the next morning (all redness was gone she said) and I could tell that next night when we face timed. The worst 2 spots got a bit flaky and that's it. Night 2 and it was almost completely cleared up. I told her she could try it 2-3 times a week and see how it went and to focus on that week before her period when she has the most trouble.
We are both thrilled that it seems to be working miracles thus far. She is doing it again tonight which will be time #2 with 2 nights off. This is the 3rd night since she first tried it.
I would love to hear if others try it and how it goes.