My husband's radiation oncologist also recommended Aquafor, and also baby-type shampoo (I bought Aveeno baby shampoo). I don't know that my husband felt a strong burning/itching, but his scalp was definitely more sensitive and red, like a sunburn, and the Aquafor/Aveeno seemed to help.
Best wishes to you and your Mom.
Nancy
**husband dx 8/07 GBM, surgery, 7-wks IMRT radiation/Temodar, currently on 5/23 Temodar, 8 cycles completed.