Botox for neuropathic pain

Has anyone here successfully used Botox (subcutaneous) for neuropathic pain (e.g. diabetic neuropathy). The Europeans have been using for some time and there are numerous good studies https://www.thelancet.com/journals/laneur/article/PIIS1474-4422%2816%2900017-X/fulltext I don't think Botox is approved here for this indication but one could do off-label, cash pay? Thoughts?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pain Medicine Source Type: forums