Post Gall Bladder removal 1 symptom is severe itchiness all over the body Prescribed drugs no good. Natural?

Looking for possible homeopathic remedy for my mother since Dr and a skin specialist are unable to help. She has been prescribed 3 different types of drugs, all of which have failed and the itchiness, just one of her symptoms, is driving her insane. I have encouraged her to see an homeopathic doctor but she is reluctant. Would appreciate some positive input re possible natural remedy to encourage her to get help elsewhere.