I am not an expert in Mental Health. I don't think that you can compare mental health treatment the same as a physical injury treatment. While on a bridging exercise years ago, I broke two fingers on my right hand and it was extremely painful, but it healed and it doesn't bother me anymore. I was also stabbed with a bayonet but the wound has healed and there is no physical pain. My mental health issues are a different matter, years later I still have problems. One of my co-workers, served in Bosnia he was not physically wounded, yet he still has recurrent nightmares and wakes up with the bed sheets wet with sweat. He has gone through two marriages. The husband of the friend of my wife served with the CAR while in Somalia. He was not physically wounded but he suffered from PTSD. Both had to leave the CAF because of mental health issues.
For a broken femur, splint, pain killers, rest and then rehab - standard method. Broken finger, splint, pain killers, rest and rehab if necessary.
For mental health the treatment will depend on the patient and there will be a varying degree of experimentation to find out what works best, although they probably is a standard method of approaching the problem. For me, it took it months of talking with the mental health professional before they could find out what treatment I was responding to. Another personal suffering from the same mental health problem as I do might: have suffered the injury from a total different experience than from me; and receive a different treatment
Yes, on the surface, a reaction to a honking horn may not be seem as serious as to someone who suffers from PTSD as a result of combat in an operational war zone. If you consider the Ottawa environment with: the loud continous noise (honking horns); lack of sleep; loss of control; and the feeling of helplessness extended over a period of three weeks, some people can develop a mental health problem. The point is any mental health injury is painful to the sufferer. no matter how it is caused.