Welcome to the forum! I am not an expert on Candida but I hope to step in until you get some answers to your question from Able or raster.
I read that hemorrhoids with a host of other symptoms is a part of candida.
But I doubt that H brings on Candida. The candida diet here on the forum is a very good start for you.
What other kind of symptoms do you have? I use olive oil on a cotton and rub the rash and inflammatory skin with it. It helps to kill the itching for a while and I read that it has little anti-fungal effects too.