I made a long post about this yesterday under the discussion about CBD (even where to buy it at a lower price than some rip off sites) so I won’t repeat it but just to say CBD(Hemp) oil with less than 0.3% THC stops that awful crawly electric pain of shingles in seconds. At first applying the oil over the affected area lasted 24 hours but now I am having to apply it several times a day. Still worth it. There are no hallucinogenic effects.