Trying to taper down by snorting, is this possible?

I was on methadone for 2 plus years. I detoxed with the help of 80mg oxy's. I still was sick for over a year still. I've gone from snorting anywhere from 6 80's a day down to snorting 2-3 Opana 40's a day. I feel like hell most of the time. Am I going to feel any benefit from tapering down once I actually get off this all together?
Thx,
3amDrive