Isn't there some term that comes with the weight of increased severity for that, which would make paternalistic jerks, at the very least, think twice? Compound fracture? Multiple sprain? I have heard what you suffered described as an "open ankle sprain" which at least calls for something to be google'd before commenting on how slight it is. I was agreeing with gp until you described the injury further.
I agree that reliance on the American (informed guess here) medical system is not a smart move, but for good reason the global medical consensus is that self diagnosing and prescribing is very dangerous. The problem is a medical system here that is not tuned to respecting patient's opinions and prioritizing their correct treatment and well being over being another profitable capitalist entity that doesn't break regulatory law.