my sinusitis and headaches got better within hours of oil pulling
but as far as detox goes i had:
pimples
lethargy
slight cold sore (lasted maybe 2-3 days and was relatively minor)
hair falling out
it seems to me that oping also makes toxins maybe just under the surface of your skin come to the surface (i.e. pimples), but that's just a guess from what i experienced.