Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Also this page:
http://www.smogon.com/forums/showthread.php?p=916733
"It also doesn't officially ban Brightpowder or Lax Incense, but some people will bitch at you using them. Any boosts gained from Metronome or Acupressure are legal. "
Well, I would say sry if you don't feel good.