Hi there! My younger sister has an addiction to snorting oxy 80's. She on minimum snorts two pills a day. I was wondering if anyone knew any good sources for some information. I'm looking to scare her in hopes of helping her kick the drug. Is it true that you can actually rot out your sinus cavity from abusing oxy 80's? Any information on the long term effects of abusing this drug would be great! Thank you for your help!