Caudal Ropivacaine With or Without Dexmedetomidine for Post Operative Analgesia

The goal of this clinical trial is to evaluate the postoperative analgesic effects of caudal Ropivacaine with or without Dexmedetomidine in pediatric infraumbilical surgery. The main question\[s\] it aims to answer are: • if Caudal Dexmedetomidine with Ropivacaine would prolong the duration of analgesia in children undergoing infraumbilical surgery. Participants will receive ropivacaine with dexmedetomidine in infraumbilical surgery. If there is a comparison group: Investigators will compare this with ropivacaine with a placebo to see if the duration of analgesia differs.