if it is not diabetes kidney problems thyroid or liver problems or allergies then it might just be the meds shes on . TRY USING dr. bronners peppermint soap and a good heavy duty moistiurizer.sometimes a soap usinh oatmeal soap is good but can be drying . Moisturizer that is unscented will help .You can also take what ever moisturizer you use for example cerave or vanicream [in 16 0z tub ]and take 1 cup of moisti
urizer and add 1 tube [1oz] of store brand hydrocortizone and mix with plastic fork and use this s in dry skin . Dr.bronners soaps are great and the peppermin soap relieves itching [yes it really does ] If skin is broken out then use the baby mild dr. bronners soap. you will love all dr. bronners bar soaps . cathy from ma