I got sores in my mouth the first week, and I felt nausea and had tons of mucus coming out. I began putting a drop or two of peppermint oil into the mix, and either
A) it was the peppermint oil
or
B) I worked through the negative effects "all of a sudden"
but by week two and three, I was getting a good energy boost, pink tongue, pink/whitish gums, firm teeth.
I had a tooth abscess though, and OP did take away the pain, but not the infection.
I believe I read about the peppermint oil on Oilpulling.com . They say it helps neutralize the toxins and their effects.