How would you know if you were allergic? I have been using this for awhile but the last month or so, I have buring around the skin near my butt. Part of me says that the area is dry... my skin all over my body gets really dry in the winter. there are NO hives anywhere on my body.... Would this be considered an allergic reaction. I works so NOW WHAT? Woudl Colace work as well?Teach