Lots of suggestions, too, for the reader who knows an 85-year-old man in constant pain from post-herpetic neuralgia. Try essential oils of lavender and chamomile diluted with one teaspoon of almond oil. That works for shingles so it could with this, too, suggests one reader. Another suggests trying topical geranium oil, which was successfully tested in a trial that was featured in the Journal of the American Medical Association. Alternatively, try Emu oil or vitamin B complex. Several registered qualified homeopaths suggest visiting a registered qualified homeopath.