I would separate out the roosters now. How old are they?
Even if they have no spurs the roosters have nails, 6 on one hen can do some damage.
Look underneath her wings for more injuries. Clean really well - flush with chlorhexidine and apply your triple antibiotic ointment.
Having a bad odor is concerning, so the wounds need a good cleaning. If the odor doesn't resolve after you've flushed them out, then an antibiotic may be needed.
I'm sorry, but it sounds like you have too many roosters. I understand that you are planning on housing them separately later on in the year, but it sounds like they need separated now. A simple dome pen can house a single rooster and are fairly easy to build. It never hurts to have extra housing so birds can be moved around when needed.
I'm not sure what your goals are, but if all 6 are not needed, then consider selling/re-homing/processing a few roosters.
I adore roosters, but they can stress your hens if space is at a premium and they are rough. Consider the health of your hens - they essentially are what makes up a flock. While a rooster is great - they fertilize eggs, they are beautiful...they are not essential for a cohesive hen flock. The ladies make eggs and do the work, take care of them.
I house roosters separately for the most part. If I want fertilized eggs, I put a rooster with the ladies for a few hours each day until I get what I need.
Keep us posted on how she's getting along.