burning sunburn type rash on body??

pameliza

I have been having episodes of a burning sunburn type rash that starts at the top of my head and then gradually covers my face, neck, chest, back, forearms, tummy and the front part of my thighs.  It feels like someone is pouring boiling water over me. It lasts about an hour.  In the last 2 months it has happened quite a few times now but this more recent occurrence was the worst. I noticed my eyes burn and I have a headache. I have had dose dense Taxol/Herceptin treatments and then just Herceptin that was finished in February. I had mentioned to my oncologist the first time it happened but she didn't seem too concerned.  Anybody out there had anything similar?