i use fent, and i've noticed that if I leave a patch out unsealed, it loses potency. and it will leak out if you reseal it, well depending on how you do it i guess i used scotch tape (on the outside, not the sticky part is where i put the hole) and then put the patch on, the scotch tape had a smear of white where it oozed out, apparently the gel reacted with the tape, turned white, and was useless at that point. (what oozed out, not what was in the patch still) I suggest squeezing all the gel to one end, put the hole at a different end, squeeze out just what you need, then squeeze remaining gel back to the end without a hole, then put in a ziploc bag, get all the air out, and thumbtack it(putting the tack through the strip above the zipper on the baggie) to the wall behind your dresser so it stays upright and no gel oozes out. (i've done this)
BUT BE CAREFUL WITH THE GEL IT IS IMPOSSIBLE TO TELL HOW MUCH YOUR DOING because it is not distributed evenly throughout the gel (the fent) its uneven so you could think your getting 2mg out of the patch but really get 100% of the fent-and bluelip it- and then another one bites the dust, man (and yes I meant mg not mcg/h cause mcgs are minute and a blob of gel is gonna probably have a mg)\
this med is meant to release throughout 3 days, and you could accidentaly ingest/smoke all 3 days worth at once, there's no way to measure it out without a precise instrument that I'm sure you don't have cause they're hundreds of dollars.
I reccommend wearing the patches it'll be good just takes a few hours to kick it, better 2 be safe than sorry, I take this med every day I know what I'm talking about darlin