Not sure if you want to try this, but I've had tremendous success with acupuncture. This may be an effective treatment to compliment the NSD treatment. Some people have had mixed results with acupuncture so your mileage is going to vary. Not all acupuncturists are made equal, so you'll need to find one who you think is reputable and has a good history helping people (preferable with our condition).
"But I also have to say, for the umpty-umpth time, that life isn't fair. It's just fairer than death, that's all." -- from William Goldman's _Princess Bride_