Neuropathic pain, often caused from another condition like diabetes or shingles, can be incredibly painful and often debilitating. Often this pain does not respond to traditional painkillers and requires some other form of therapy. Compounding can expand options for treatment to help the patient find a treatment that works for them.
Successful treatment of postherpetic neuralgia with oral ketamine.
https://www.ncbi.nlm.nih.gov/pubmed?term=7833583
Combination of alpha lipoic acid and superoxide dismutase leads to physiological and symptomatic improvements in diabetic neuropathy.
https://www.ncbi.nlm.nih.gov/pubmed?term=22329607