I have a 2nd grade student who sucks her thumb. She is mentally challenged, but she is a higher functioning one. She is in resource class and the resource teacher put a glove on her hand to prevent the pattern. However, the girl will take it off. She has told the teacher that the thumb sucking does not bother her and she does not care what others think. I don't think I will get much support at home either from the parent. Do you recommend using the Unplugging the thumb material?