My daughter has very sensitive skin. I have an older son that has similar problems with skin. Mostly legs become very dry and get bumps on them, similar to poison oak (when it breaks out) itches very much. We started using hydrocortisone cream, it seemed to get worse, changed washing powder to Tide for sensitive skin (no dyes or perfumes). Have been using Calamine lotion on it, over past two days have been spreading up legs, started on one than on the other. Told her not to shave legs may be making it worse. She is scratching because she says it itches really bad. Been giving her Benadryl at night. Can you advise?