Simply Choose To Forget

Electroconvulsive therapy (remember One Flew Over the Cuckoo's Nest?) is being looked at as a possible aid in severe cases of post-traumatic stress, the idea being that if a particular memory is the problem, the solution might well be to erase that memory ~ permanently (story, video): http://www.bbc.co.uk/news/health-26255462
   Starting with the Romans, a brief history of "medical electricity" (slideshow): http://www.newscientist.com/gallery/electroceuticals