Recovering memories lost in amnesia will depend on the cause of amnesia and the extent of the loss. With amnestic syndrome, the amnesia tends to be more permanent and treatment focuses on strengthening the brain's ability to form new memories. Some of the lost memories may never be retrieved. If you suffer from dissociative amnesia, a psychotherapist will work with you to restore the gaps in memory and help you deal with the initial trauma that triggered the amnesia. Sometimes memories that are recovered are faulty and cannot always be considered reliable.