Some would respond very well. I know that for me, dealing with the stigma of actually having to smoke or vaporize cannabis has not always been the best for me or my social life.
I will actually slightly disagree with Dr. Hurd on the smoking or vaporizing portion, as I've seen that it does help a lot of veterans with sudden onset PTSD symptoms. With oils or edible forms, it can take anywhere between 45 minutes and two hours to actually calm the patient down. If somebody is in a mall and has a flashback and he or she is freaking out and needs to step outside, I find that actually vaporizing cannabis is a much better immediate symptom reliever than an edible. It's going to vary from patient to patient.