Best thing to clean out a wound is sterile saline, followed by sterile water, followed by potable water.
This seems to be the concensus, but for the moderately small PSK where space is at a premium – and assuming worst-case...no water available (let alone sterile) – what is recommended carry for wound care; ideally, something that comes packaged in a small, single-use packet, or a small multi-use container. At the moment, in my PSK, I've got three alcohol swabs, and three individual packets of povidone iodine.
The wisdom here suggests not a good idea, at least for my intended purpose.