Hi, does anyone have any experience of dead arm and skin rashes. I haven't had diagnosis yet, though had two lumpectomys so far and a melanoma removed from nipple Jan 2018. Right breast been weird since, itching all the time, fold of the skin in cleavage oh and lump that's trebled in size. Lump I can cope with been there done that. But armpit and arm swelling driving me bonkers now little white lumps on upper arm near armpit itching like mad.