Brief Summary The goal of this study is to learn if Faradic Nerve Stimulation (FNS) can help children recover from a condition called Post-Injection Sciatic Nerve Injury (PISNI). PISNI happens when the sciatic nerve, which controls muscles and sensation in the legs, gets injured from an injection that was given in the wrong place or in the wrong way. This injury can cause pain, muscle weakness, and problems moving the legs. The main questions this study aims to answer are: Can Faradic Nerve Stimulation help children with PISNI recover better than regular physiotherapy alone? Does FNS reduce pain and improve movement in children with this injury? What will happen in the study? Children with PISNI will be treated in one of two groups: Group A will receive Faradic Nerve Stimulation along with regular physiotherapy. Group B will receive only regular physiotherapy and a similar treatment called Transcutaneous Electrical Nerve Stimulation (TENS). Both treatments will be given by healthcare professionals in a safe and comfortable environment. Participants will be asked to attend therapy sessions for a few months and will be checked regularly to see how well they are recovering. Why is this study important? Post-Injection Sciatic Nerve Injury is common in children, especially in countries where healthcare providers may not be properly trained. This can lead to long-term problems, including pain and difficulty walking. Standard physiotherapy helps but doesn't always work well enough. By testing Faradic Nerve Stimulation, this study hopes to find a treatment that helps nerves heal faster and more completely, especially in children who need it most. The findings from this study could lead to better treatments for nerve injuries in children, particularly in areas where healthcare resources are limited. If FNS works well, it could be a new way to help children recover and live pain-free lives.