She said medication has its place in treatment but should be very limited in treating someone with PTSD.
If medication is used, "they have to be monitored and they have to be adjusted for the patient," Davis said.
If someone has problems with sleep, it may be fixed by taking care of other symptoms, she said. "Fix the main things and nature will take" care of the others, she said.
Fairchild said that as a society we have a role in seeing that veterans returning from war receive the reception and treatment they deserve and need.
Veterans suffering from PTSD said they want people to understand their condition but that they do not want any special treatment or for anyone to see them differently.
They don't want to be asked about their difficult experiences and don't want any sympathy.
"The image in the public right now is a ticking time bomb," Fairchild said, "and that's not always so."
War veteran Vagianos said the public should understand that some of those veterans returning from war will suffer from PTSD, but it is not just veterans who get the condition.
"If the brain is a muscle and you keep punching it, it's going to bruise," he said. "When that happens, there should be a healing response. That is reliving the experience."