I think of it this way. PTSD will always be with you. However, with proper treatment, support, and a lot of work, it can go into remission for long periods of time. Perhaps forever. I wouldn't say that it can be "cured" so much as it can be managed. I'm not a doctor and I don't pretend to be one in bars, so that is my non-medical opinion. I may go for weeks or a month and feel almost normal. Then I hear, see, or smell something and it brings some traumatic event back to the front of my mind. It is a cycle. But over time those "normal" weeks last for longer and the bad times get shorter.