I've used it a ton via nasal spray (just not into injecting stuff personally). For soft tissue injury and general recovery I found it great. Now I'm a lazy fuck who barely works out but back in my glory days so to speak I had this recurring tendonitis in one of my achilles, mostly from muay thai probably, all that balancing on the ball(s) of your feet (lol this sentence was funny to write), which I constantly exacerbated from general overtraining.
I remember someone asked a similar question a while back and I reported a specific incident where I went for a long run in icy weather (Wim Hof style, I wore shoes and a t-shirt though, I'm neither that confident nor that reckless, I mean let's be honest you gotta wear shoes if you're running on pavement no matter how calloused the soles of your feet are).. ahem anyway so after I could feel this niggling return of this tendon issue and of course thought ah fuck guess I gotta tone down training for a bit again, but was taking BPC-157 at the time and next day was totally gone. Also helped with DOMS massively, in that I just barely got it at all despite lifting several times a week to the point that during the off-days some urrrrghhh kinda muscular pain was just par for the course, usually.
Y'know as I reflect now I dunno how healthy that intensity of training was overall, is one supposed to get DOMS that often? I'll note I had already seen a physio and been given some basic bodyweight things to do to help with the tendonitis so it wasn't as bad at that point as it had been but was still a kinda semi-regular hindrance which BPC-157 just cleaned up completely.
What I will say about BPC-157 is that I think the jury is still out on the benefits of systemic versus localised administration, I think Ben Greenfield might advocate local injections but (correct me if I'm wrong someone, can't remember if he even says this and I may also be wrong on what I'm about to say) I don't think there's evidence this is necessary versus any old convenient IM or, indeed, nasal spray or even just eating the stuff, I mean it's supposed to be "gastrically stable", doesn't break down in the stomach, can be orally absorbed, etc... but there is a form that is MORE stable somehow and thus probably better for just eating than other ROAs. On the other hand even with strategic concentrations and staggering of sprays to maximise dose, it's basically impossible to get the same kinda dose from nasal administration versus IM, my injuries were perhaps fairly minor in the grand scheme of things and everything I say should be considered in that context.
Ankle sprain though, yeah I mean I'd put that on the same level roughly as what I had so yeah I'd recommend for sure.