You cant get valium and vike legally, unless you have a prescription. But if you have true pain, try the legal opioid, Kratom. If you get it from the right dude, it can be impressively strong. And opiates have a much higher pain-relief to brain damage ratio than valium does, although valium may be a little better in relieving anxiety related to the accident. If you have nose pain snorting pills or powder might not be the best idea. Do NOT snort kratom if you have nose pain. Just eat it. Do NOT inject it either.
But its easy to get drugs from doctors if you know which ones are the dumb fucks. you can just play with their brains... all the while theyre unsuspecting... then you walk out and BAM youve got four different kinds of drugs. But dont ever combine benzos with opiates.