I have had a lot of candida all over; for me the best remedy on the skin was a mixture of borax in water with a few drops Iodine in it. Saturate one quart of water with one heaped tablespoon of borax, add 10 drops of Iodine in it and 5-20 drops of essential oil of your choice.
Very soothing on all kind of rashes, itching etc.
Just spray on an let it sit for at least half an hour before rinsing.
If you like, finish with some vinegar or citric acid in water just for the acid mantle.