At 4 days you will have little effect. The only detox worse than sub is Mdone or Fentanyl
, from what I can tell. H is fast acting and will detox fast, one sub dose lasts 21 days. Get into NA, counseling, church, whatever helps you stay in recovery. You relapsed recently, what are you going to do different this time? Or are you planing subs as a makntenance drug?