I cannot agree with the suggestion to get rid of it, while you are in your present state.
Instead, the best thing to do would be to get a trusted, non-drug-using friend to look after it for you. Failing that, pack it well and stash it in some woods a fair walk from home, with a lighter and some foil so you can get instant gratification if and when you go back for it. You want to make retrieval possible, but not effortless. If you flush it down the toilet while you're craving hard, you won't be doing yourself any favours. And you probably will end up scoring again, and sucking greedily at the aluminium nipple; till before you know it, it's all gone and you're back to square one again -- and all the suffering you've been through up to this point will be wasted long after you aren't anymore.
But the prospect of a hit some vague, unspecified time in the future can act as a kind of safety net to help you psychologically through the withdrawals, even if you never end up actually taking it. Because you are going to reach a point where you think, f**k this -- I'm really not getting any better. I need gear now! And the thought that some might be had, for a little effort, will help calm you down. While your body is getting its chemical balance back in order, you need to be giving your mind the easiest ride you can. In the best case, you will be able to kid yourself long enough to get over the hump. Nights 4 and 5 will feel a little bit better. And by night six or seven, you might even experience what I call "The False Stone" -- the effects of your body overshooting slightly with the natural pain-relieving hormones that opioids mimic so deliciously.
