General open ended long term psychological counseling will achieve little if the cause of the stress is not addressed. So removing the person from the hostile workplace environment is crucial to the healing process. This is sometimes the most difficult challenge we face in getting health and healing for our whistleblowers. 
PTSD is caused by response to stress so creating an atmosphere conducive to the person feeling safe and secure is essential to the healing process. People who advocate deliberately confronting a frightened and anxious person with what they fear should reconsider this approach and recognize that confronting one's fears can only be done when there is a base of emotional support and safety already established, otherwise the person may be forced into flight or fight mode and the situation could be dangerously escalated.
Often those whose wrongdoing the whistleblower is exposing will deliberately try to push on the trigger points that frighten the whistleblower, so as to precipitate an acute stress reaction and anxiety. This is meant to discredit the whistleblower and their complaint or allegations. This tactic is often used to defame their professional and personal character.
Long term open ended counseling which digs deeply into one's personal life is itself a stressful process and as such should be entered into cautiously and may be contraindicated for people who are already suffering from significant acute stress.
General counselors are
often trained largely in dealing with people's endogenous or
intra-psychic problems (those which come from within), and may be highly
skilled in doing so. However, they may have less training or
experience in dealing with employment-related concerns such as stress
and/or workplace bullying, where the source of the difficulty is
external. Misplaced or misguided counseling, however well intentioned,
can do serious damage to stressed and bullied people by feeding and
reinforcing their own feelings of failure and self-blame, challenging
their reality, and pushing them further into stress breakdown.
Employees may feel concerned that their confidentiality could be
compromised, and this concern is not entirely groundless. Hostile
psychiatric evaluations used to remove the targeted Whistleblower from
his/her employment are commonplace, so is a Fitness for Duty examination
that removes the Whistleblower’s badge or security clearance. Medical
Peer Review practices are aimed at removing the medical license from
the Medical Whistleblower not at assisting them in Telling Truth to
Power. Referring stressed people for work-based counseling helps
perpetuate the myth that it is the person who is the problem, rather
than the working environment. In addition, where workplace bullying
and whistleblower retaliation is involved, and/
or the whistleblower’s
continued employment is under question, there can be boundary
problems. Where the stress has been caused by workplace harassment and
bullying, it also allows the perpetrators to switch the focus of
attention away from their own abusive behavior by inferring, usually
under the guise of sympathy and support, that the person they are
targeting is mentally ill, and that it is their "mental illness" which
is responsible for the current problems within the workplace. The
whistleblower may feel safer talking to someone who is further removed
from their situation. A better option would be to tackle the actual
problems in the working environment. A responsible employer should
look to see what changes can be made in the working environment, and to
reduce the expectations on the stressed person.
"For he has not despised or disdained the suffering of the afflicted one; he has not hidden his face from him but has listened to his cry for help."
Psalm 22:24