They have drugs for concentration and in reality its called depression..the pills take about 4-6 weeks to kick in she should be good to go. As far as greiving that could take a lifetime she may never get over it, I'm serious not being snarky. So she had better seek out some help so that she can manage her life and a good doctor would tell her as much.
She has to be seeing a Primary Care or Psych of some kind, to be continued on employment disability. They want frequent updates as to condition/plan of care/response and prognosis. Of course if you have a sympathetic Primary Care physician it's not difficult to get continued coverage. There will be much closer scrutiny when she applies for permanent disability via SSI .... it seems like that's her plan.
Many people are out there working every day , stressed, anxious, depressed and they have to suck it up and get on with it.
Some vigorous physical exercise would help her more than a lot of meds...
She could easily get a job as a Nurse, there are multiple choices for someone who does not want any direct patient contact..