Multiple Personalities Support Group
Dissociative identity disorder is a diagnosis described as the existence in an individual of two or more distinct identities or personalities, each with its own pattern of perceiving and interacting with the environment. At least two of these personalities are considered to routinely take control of the individual's behavior, and there is also some associated memory loss,...
gretchen et al.
To answer your question more forwardly...
Journaling works...
Mediators work (Someone to talk with each one individually and then place their needs and wants down in writing for the host) Keep in mind that person may be attacked for trying to help.
Emails to oneanother I have heard works...
Recording Devices...
But mainly the host just needs to be comfortable with talking directly to them if he or she can...
Internally we have a message board in a central location that everyone can leave messages for each other there. For those who don't wish to communicate in that way, they have the option of talking with someone inside to relay a message to someone else or to me as the host, this role usually falls upon Kiara as she tends to be our internal peace maker.
Jaye