Okie,
Candida is normally in our bodies but under control. When your immune system is suppressed it is not uncommon to have an infection. I had a very bad one when I first went into the hospital and it recurred several times. They treat it with an antibiotic called diflucan.
Why are you taking antibiotics? Taking them unnecessarily can only upset the balance of bacteria in your body and with a suppressed immune system that is asking for trouble. They usually take a scraping to determine if you have candida and then start you on diflucan or a similar antibiotic. I don't think other antibiotics work on candida.
Bill