This has been covered countless times, use the search engine and look up "cold water extraction". SWIY will have to evaporate the final product to get it into a form which can be snorted (not sure how well it would work though), or smoked (not sure on this either, SWIY would probably have to use indirect heat and chase the dragon). The best thing to do with a CWE product, and the simplest thing, is to drink the liquid with the hydrocodone
in it at the end. Just be careful with the dose.