Hi there, There are two reasons for itching after surgery. The most common reason is a reaction to the pain medications, as opioid based pain medications such as norco, vicodin and percocet can cause itching. I would recommend, if she s not having pain issues, for her to stop pain medications. The second thing that can cause itching after gallbladder surgery is an injury to the common bile duct, which causes an increase in bilirubin leading to jaundice and can lead to itching. If she cuts the pain medication and is still having pain issues and itching, she should undergo an ultrasound to evaluate her common bile duct. I hope this answers your questions. Please feel free to contact me should you have any further questions.