How do you shoot up fentanyl transdermal system with vinegar?

I recently came across a 25 mcgh/hr fentanyl transdermal patch from Mallinckrodt. I've never tried it before but this type has no gel to it. I was told to draw up 50ml of water and put the patch in a cooker. Let it sit for 15 min and beat it down with the plunger before drawing pack up. hope it works.