Itchy and tired is not a good combo

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Hello can anybody help? I'm finished a course of radiotherapy - yay to that! I never felt a thing at 1st as I've had a mastectomy and am numb but a week later and i am blistered under my arm and right over my chest- I don't want to be a pain and waste the nurses time because let's face Ive been there far too often this year for my liking. if anyone knows the best solution - my friend suggested savlon but it nips. It's keeping me awake n driving me mad!!! Grateful for any advice Thanks Kerry- itchy & tired! X
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