I could not get this thread out of my head so I did some checking on this in general.... Scotland made some changes to their mental health system in 2011 around the issue of self injury. After a period of gathering statistics and talking with those that were inpatient and outpatient that self injured they came up with a plan that is reducing the amount of time people stay inpatient and how they address self injury, which is reducing how much patients are doing it.

their first step is to treat the present wound.
then they assess whether the self injury is deliberate/ intentional (repeating the negative behavior)
they supply the client with therapy options so that they can learn other coping tools then acting out in self injury (meds, talk therapy, grounding, breathing, stress reduction,...)

if they find that the negative behavior is repeating and escalating with treatment rather than decreasing with treatment they deescalate by removing the focus from the self injury behavior. instead require the person doing the self injury to take steps their self to control their deliberately self injury by taking their meds, and using their stress reduction tools.

the mental health system in scotland no longer takes responsibility for curing someone of their self injury behavior, just like with any other mental problems they expect the patient to own their negative behaviors and do whats needed to control that behavior.

America does the same thing just in a different way. american treatment providers can not be with us 24/7 forcing those of us that self injure or have alters that self injure to stop. they offer meds and talk therapy to talk out our problems but ultimately each of us has to decide for ourselves whether we want to continue to self injure or stop and when not in the therapy sessions use what we learned in therapy.

one thing about DID is that it begins in childhood, before the age of 5, which means self injury alters have been there all a persons life, but yet the person with alters who self injure still grow up to being adults, they survive. which means that a persons system of alters is set up for survival, even in self injury behaviors of alters.

Which is why scotland does not do anything major in response to repeat self injury behaviors even with those with DID. with DID patients they already know from that persons life history whether the behavior is new and for attention (repeating and escalating with treatment) or old and the internal system of alters already have ways to handle this.

my suggestion is since treatment providers have decided to leave this situation in your control with you and your system of alters maybe you can look back on your life and see how your system of alters handled this before.

meds.... contrary to what you find in books and on the internet medications do help dissociation. it all depends upon what the triggers are that is causing a person to dissociate. This is why here in america meds are being prescribed to people with DID and other dissociation problems.

another suggestion is if you have been prescribed medication take the meds for about 6 weeks then report back to your doctors how the meds are working or not. they will be able to help you get the correct meds and dosages for helping you to control what ever is triggering the self injuring alter to do this.

attend your appointments with your treatment providers and talk about your problems, they can help you to develop a treatment plan of what you need to do on your own to control the self injury by you understanding how and when it happens and what you need to do about it. then follow through with what your doctors tell you to do about it.

the treatment providers cant control you, your alters or the self injury. if you dont want it to continue you will need to follow what they are telling you to do, including taking the meds when they prescribe them.

if its any consolation here in america they do the same thing when someone's self injury is escalating not getting better. they stop treatment from focusing on the self injury and leave it up to the self injurer to control it their self.