I think alcohol in the sense of its intoxication ability, and specifically pointed here as being consumed, is not halal.
that question about cleaning a gash/wound, you have to understand the fatwa was made to avoid muslims 1500 yrs ago from being drunk (which in turn led them to kill, rob, have sex with their slaves, and bury their daughters alive). It is the responsibility of muslim scholars nowadays to investigate and make adjustments to the guideline.

Consumption of alcoholic beverages, causing One to lose their self-control is prohibited. Medical purposes, come on la, common sense la bro. If luka already, got blood spewing already, obviously you know that putting tanah on it will make it go bad abcess pus and everything. So alcohol kill germs effectively...use lah!

When you have heart problem, some anti-coagulants ( was it coagulants? Damn cant remember) made from non halal source wooo. If want halal can, but risk of renal failure shot up, how leh?

Sorry la bros very long dont tl: dr me