There are certain symptoms associated with ptsd for an issue to be classified under that. However, going by what you have mentioned, emotional trauma can continue to affect a person in many ways and at different stages of life until and unless it is addressed at the root level. There is no one therapy that can be used. Rather, an eclectic approach tends to be more useful and effective.

I would be doing counseling followed by hypnotherapy/n.l.p

Complex PTSD has a symptomatic manifestation which is much more gruesome that PTSD and much higher that mere emotional trauma perpetuated by parents. It is more traumatic both at a physical and emotional level where their very existence is threatened like people being abused in captivity and severity is higher than that of PTSD and can result in a total change or personality even conditions like BPD. Yes the therapy would be much more aggressive involving an integrative approach. Initially started of by just providing reassurance and support graduating to the specific symptom management. Also in C-PTSD an inter personal therapy or intensive therapy of the like will be used to restore their sense of self.