The approach of the FAST Lidocaine study will be to assess FMA use. The FMA is a painless mechanism that is placed on the skin with minimal pressure. It creates microscopic punctures in the stratum corneum, facilitating movement of anesthetic through the cutaneous barrier. The device's physical characteristics, namely its easy application and low apparent potential for incorrect or unsafe use, appear quite suitable for ED utilization. If it works, the FMA would be immediately useful in a variety of circumstances.