Is It Really Safe To Start Suboxone 24 Hours After My Last Oxycodone Dose, Or Should I Wait 48 Hours To Avoid Withdrawal?

I read the answer above saying to start suboxone after 24 hours. I also read that I must wait at least 48 hours. I m confused and scared. The last time I tried to quit oxycodone I only waited 12 hours and ended up in the emergency room. After going thru that I m now really worried about the time frame needed. In snorting 4 per day. I just want my life back ... Is waiting 24 hours really an accurate and safe tome to start soboxtone.