Derina:
How about western movie or tv show?
Teen Wolf S1 ep 1, S5 ep 3?, 5? - rated TV-14 bc of gore and sex scenes. You can find the exact episodes by searching for Whump Lists for it on Tumblr
The Guilty (2021) - rated R for language
I mentioned "Your Honor" (which is Turkish or Israeli) earlier, but there is also an American remake of that. I havent watched it, but I'm sure it's either tv14 or MA.
Criminal Justice (2008) - on BBC, British, again, haven't watched it, but the Korean remake had a good bit of well portrayed asthma scenes, so I expect this one does too. MA?
Kamen Rider Dragon Knight (2008) - ep 12, 14, 15, 17, 18, 19. Super cheesy, but the asthma was pretty well portrayed.
Silo (2021) - Maybe pg-13 for language. American thriller.
30 Days of Night - movie, on YT in parts. Pt. 1, 6, 7 of 11
Bir Ask Hikayesi - Turkish, second male lead, maybe MA? Ep 1, 2, 6, kinda in ep 20
Çukur (2011) - Turkish, (On YT I think) I haven't watched it, but here's a playlist that has some of the whump scenes from the character you might need a VPN to view them all tho😅
https://youtube.com/playlist?list=PL2VF9X7UDxK1JV5p0NE8AR5jpQzwjjEJu&si=e4XLRmQlb4--b-qG
Can't Stop Loving You - Turkish? (On YT @CantStopLovingYou I think) I haven't watched it bc it's so long, but I heard there are multiple asthma scenes. The best one is in ep 67.
Caer en Tentacion (2017) - Mexican, probably MA. I haven't gotten too far, but I know of ep 8?9?, 16, 92, & 96
Retreat - movie, Mexican, but there's Eng dub. Horror.
Shelter (2014) - movie, Spoiler: he's doesn't make it all the way through
Unknown Soldier (2004) - movie, maybe R, I can't find it anywhere, but, if you can, good for you!
Bonus:
Mi Marido Tiene Familia (2018) - Mexican, prob MA? I haven't watched it, but I know one of the antagonists has asthma
Outsiders (2001) - Australian (on YT) it's just a side character, but the asthma is portrayed well and the show is a cute, fun watch.