Actually Imahotep, your TENS unit should be helping you with pain relief. It really wouldn't be part of a desensitization program. If it's hurting you or causing muscle tremors or spasms, you might have it up too high! At the right level a TENS can really help with pain control. Try a lower setting and maybe it won't aggravate your tremor. Hope this helps! If you have any questions, feel free to PM me or just ask!
Linnie