Ok this has gotta stop. The "sXe" thing is about purity of self. Drugs, alcohol, promiscuous sex, smoking etc etc etc are all variously addictive vices that straight's believe prevent one's clarity, focus, and a hindrance to achieving one's ultimate potential. It's not about the actual imbibing of drink nor passing of medication through the lips. Clearly you need certain medication to survive lest your lungs cease up and you die. Only absolute morons (hardliners) would think you less for taking the necessary medication(s) you require to sustain life.
If your lifestyle is about being the best you can be in body, mind, and spirit and by doing so you abstain from participating in and/or ingesting things that alter or impair those abilities then I truly believe you are "straight edge". But that said... who the F' am I, and why should you care what I think?
More to the point if for any reason people don't believe or think so... then tell 'em to F' Off as they've clearly missed the point entirely and are closed-minded hypocrites. Same goes for the jackanapes who mindlessly prattle on about what music,clothes and fashions are/aren't "true" punk/hardcore/sXe like so much ambivalent white-noise. At it's core "punk fashion" wasn't a statement but rather the end results of youths who couldn't afford fancy clothes and by consequence (not choice) ****e them till they frayed, ripped etc. and generally fell apart; sometimes they held said garments together by means of safety pins if necessary. Only later was some stupid manifesto and creed applied to the whole concept ad hoc as a way to make everyone feel rebellious and non-conformist.
Wear whatever you like and if someone doesn't like it or doesn't think it's sXe and calls you out for it then clearly they're part of the same conformist, herd mentality that was the whole thing you "punk rockers" where trying to avoid, hence the above mentioned hypocrisy and infantile posturing, of form over substance.
Do what you do for yourself please. As long as you don't hurt anyone or deprive them of their rights then you've no one to answer to but your own reflection and conscience.