IT REALLY WORKS!!!
I overworked my back while moving and the resulting sciatica was not responding to a 'Ski-Mor 41' (4X200mg ibuprofen + 1 acetaminophen) or pain patches.  DMSO cream reduced my pain by about 90% in 5 minutes.  It also works on the osteoarthritis in my left hand.
Rating: 5 stars