Determining the effect of the 5% lidocaine patch and flurbiprofen patch for improving functional disabilities and in reducing pain resulting from acute low back pain. Efficacy will be determined by the level of pain relief (as measured by the Numerical Rating Scale, NRS), decrease in analgesics, improved quality of life (as measured by the Oswestry Disability Questionnaire, ODQ, and core outcome measures index questionnaire, COMI), pain interference with function (as measured by the Brief Pain Inventory-Interference scale, BPI-QoL), Short-Form McGill Pain Questionnaire-2(SF-MPQ-2), general health status (as measured by the EQ5D), Overall treatment effect (OTE), physical exam from baseline up to 1-Months.