wow, people are suggesting using lsd and k-holing to ease a comedown... damn. its very simple. you either take 2mg of xanax, 30mg of valium, or an opiate (my personal favorite). the whole point is calming down, and getting back to normal. the k hole comment was funny to me, because after a high dose ketamine adventure i feel completely drained, so that would be a horrible idea. however, using a very low k dose to sedate you may work.