The thing is returning her to her stable isn't likely to be perceived s punishment as it's too far removed from her action, but if she somehow did then you don't want her associating it with punishment. Many years ago, when he was a youngster, I made the mistake of pushing Jim away a few steps as punishment & ended up with a horse that forever viewed being asked to move away as meaning he was wrong - doesn't sound much but think of lunging, or asking to move over in the stable or a hundred other little things. Think very very carefully about how you reprimand, particularly with a clever horse who may take more from it than you think.
I don't think anyone would argue that a disrespectful, out of control or frightened horse is dangerous! Step one for us is putting ourselves in a position to succeed though, so constantly be aware or what your body language is saying & hers too - if she's a pushy horse then make sure your stance always says you mean business & instil behaviour such as taking a step back when you ask on approach so you have a clear doorway. I don't have any problem with treats as rewards, so for example "get back" & if needs be a finger (not the flat of your hand) in her chest to reinforce it with the repeated command & then "good girl" & a treat when she complies. Like us they learn far faster if there's something in it for them! Clicker training is a formalisation & more refined version of this - I find the crude form works for me. Yes horses do use aggression to each other but if you really watch a herd you'll see the real high ranking horses don't need to because body language alone is enough, when aggression kicks in it normally means there isn't enough respect & you really do not want to be in that situation. IF physical correction is needed (& personally I think it means I've failed or the situation has escalated to where my personal safety is at stake) then it should be instant, aimed at the area that has given offence, & big enough that the horse's immediate reaction is "*#@! I'm not doing that again!". What level that is will vary from horse to horse, what would turn my welsh cob into a blithering wreck would have had so little impact on my ID that he'd have come straight back at the human to correct them - what the ID would view as "woops, went to far - sorry" would probably mean I'd never get near the welshie again. The ID was a field god though & probably the most dominating horse I've ever dealt with in over 35 years, the welshie is bossy in the field but doesn't and never will have that level of authority where an almost impercetible change in body language can alter what happens half a field away.
I still think I'd be looking at getting a vet out. The farrier can't see inside the feet, but also a problem shoeing may be due to pain elsewhere & that discomfort or memory of it may be why you're having problems now.