This morning my Dad woke up with a rash under his L armpit, on his chest, and back. He went to the doctor and was diagnosed with Shingles. Has anyone else experienced this? I'm really worried that this will turn furious as his immune system is so down 3 weeks post chemo. My worry level has now shot up and I'm SO frusturated. It's been 3 weeks post treatment and everything is getting worse, not even slightly better. Mucous is horrible, he's gagging so much he's throwing everything we put down his feeding tube. Ughhhhhh!!!!!!! I hate cancer!!