Comment: Use of intravenous local anesthetics as a means of controlling severe systemic pain is not new. Procaine was advocated decades ago for such difficult problems. It is fairly well established, therefore, that such treatment regimens can provide pain relief.The present article has two areas of weakness 1) it reinvents the wheel without a control group and 2) the small number of patients (n = 4) should have been better used via a cross-over study.