Yellow Blister on scalp?
 

My husband has this yellow blister on his scalp. It is about the size of a pinky fingernail.

Has anyone had anything like this? Could it be related to his issues?

Watch out for shingles! It needs to be caught within 36 hours with the correct antiviral medication. Post-herpetic neuralgia is not something you want your husband to have to live with.

Yes I have that to happen to me. I get these bumps across the top of my head with white centers in them. No it is not shingles....at least in my case. I know about shingles having had it across the top of my head down to above my right eye some 12 years ago.

My Dermatologist claims it is pre cancerous from exposure to sun. I am not sure that I believe her since it only seems to happen during and immediately after my monthly week of so called maintenance shots of Vidaza. It has now been two weeks since my last shot of Vidaza and all the bumps we are talking about are gone. My cancer doctor says he does not know anything about Vidaza having this effect on anyone.