Welcome @pfox,

I am 49 years old and have suffered with CRPS now for almost nine years now and unfortunately your daughters experience is very much
the way it goes for most of those that suffer from CRPS. There has been very little advancement in treatment for CRPS, especially considering
that it has been in existence since civil war times. At which time they thought it was all in the patients head. Many doctors still think that, despite the World Health Organization adding to the list of Rare Diseases in 2014. This was a significant win for CRPS patients as this then allowed for more money to be available for research!!

Currently you basically have three main things that you can try (beyond physical therapy, nerve blocks or surgical sympathectomy).

The first use to be the prescribing of opiods and/or narcotics for the pain itself. These often in conjunction with other medications meant to address the neuropathic pain such as Lyrica or Gabapentin.
Second is usually by way of SCSS (Spinal Cord Stimulation Surgery) This surgery places stimulating electrodes through a needle into the spine near the spinal cord, which provides a tingling sensation in the painful area. Electrodes may be placed temporarily for a few days in order to assess whether stimulation is likely to be helpful. Minor surgery is required to implant all the parts of the stimulator, including the battery, and electrodes under the skin. Once implanted, the stimulator can be turned on and off, and adjusted using an external controller.
Finally, the most recent (yet not that) is the use of Ketamin infusions. In which you go to hospital as in or outpatient and receive daily infusions of ketamin.
Both SCSS and ketamin infusions have not proven to be beyond 50% successful. Really SCSS is only a "distraction" not a cure.

As you mentioned with your daughter, in the case of medications which a lot of CRPS patients heavily rely on to help tolerate the excruciating pain just to get
through each day, this is now becoming more and more in jeopardy as the incidence of abuse in the country (including death) continues.
This will and most likely has already, resulted in more deaths in the CRPS community as a result of being denied their medications, which are the only
thing a lot of them have to help keep them from choosing death!
I myself have already been told by several doctors (when I was looking for a new GP) that they would take me off all of my pain medications immediately. This has resulted with me having to stay with a doctor that I am not that comfortable with. This because he knows that ALL of my medications were prescribed by a very knowledgeable pain doctor who happened to retire and left me without any referral.
Finally, my husband's company changed Insurance Companies and the new company wanted all of my medical records to ensure that I had tried all other
medical treatments available to me beyond the use of the narcotics and opiods. Of course I was able to do that no problem (who the hell who has CRPS has not looked everywhere to find some kind of relief beyond just taking pain meds?? Since my husband passed away last year, I only have one more year of his insurance coverage then I have to prescribe to our government for assistance (since I survive currently only on a meak disability payment) My medications cost more than my disability payment even before taxes!! I am hopeful that it will go the same as with the insurance company, although I know that they expect everyone to be prescribed opiods within a certain recommended range that was established by a community of medical doctors familiar with pain. I know I fall beyond that range! So, I am frankly scared of the day that they no longer provide me with the medications that I have been taking for a number of years. I am also afraid of the day that medications that I take no longer provide enough pain relief, especially since I am at the maximum dosages that are allowed to be prescribed!
So I a can fully empathize with you and your daughter as well as many other CRPS sufferers. I really do not know what is going to happen. As I am sure there are those CRPS sufferers that have already had to take their lives due to being denied their pain meds. Most likely they have just been lumped in with All of the other abusers or pain addicts!!
It is hard enough to try and continue to Want to live with CRPS. I have often found myself trying to justify continuing to live. Frankly, the only reason I am now is because of my dogs. Once they are gone (if I have not yet bust through the threshold of my pain meds before that, which I am not sure that I will be able to make it much longer to get beyond that) I will most likely go to. It really isn't worth the daily struggle in pain. Before anyone tries to judge, walk a mile in my shoes....ones that are embedded with razor blades and set on fire, while someone shoots darts into your legs and someone drags on your hips trying to drag you down. Then a lion claws at your thigh. Could you keep going with this happening day after day, year after year?