I am on chemo, and I break out with large welts, almost like a boil but do not come to a head, and they are very itchy, I am losing a lot of sleep because of the itch, and I break open the skin and it starts oozing, I have had many different types of creams and nothing is working, now I am getting some on my face and my belly, so all over now. I need something to kill the bacteria that is causing this, what can I take internally, as an antibiotic to cure the blood or immune system.