An investigation of the angry back syndrome using Trafuril

The angry back syndrome (ABS) was investigated using Trafuril cream and prostaglandin synthetase inhibitors. Trafuril produced an increase in the numbers and intensity of patch test reactions which was partly abrogated by aspirin and indomethacin. Irritant reactions were not affected. We suggest that Trafuril may increase the sensitivity of the patch testing system and that this may have useful clinical applications.