I don't blame you for wanting to find an optional treatment for Candida as the side-effects of the drug of choice, Nystatin, can be pretty awful. Here is a partial list: Diarrhea, nausea, vomiting, stomach upset, allergic reaction such as rash, itching, swelling (especially of the face, tongue, & throat), severe dizziness, trouble breathing, and liver damage.
Believe it or not, Candida has a purpose
Candida survives on the large particles of food that escape digestion. To truly and permanently get rid of Candida, you must first make sure that nothing escapes digestion. Supplemental digestive enzymes help you digest food so Candida starves.
Since Candida is a digestion problem, don't kill off all your Candida before fixing your digestion issue. Candida is your last line of defense to prevent large particles of food from entering your bloodstream where they will either be attacked by your white blood cells and possibly cause allergies or worse... be missed by your immune system and get lodged somewhere where they may cause even more damage.
The last piece of the puzzle is Cellulase, as it doesn't kill but digests Candida... so it doesn't produce the typical toxic effect of die-off that drugs or other chemicals might produce. It digests yeast topically & internally very quickly but it's important to deal with diet and digestion first. Once all systems are working, then use cellulase.
Curing Candida is a multi-step process that needs to be done in a particular order. It's best to work with a knowledgeable naturopath or holistic professional who knows the science behind the problem. Do your homework before enlisting anyone because that's the only way you'll know if they're legit.
A good place to start is by going through the free online course offered here Health Secrets Summit. It's information shared at an in-person event that walks you through the digestive process step by step so you gain a clear understanding of not only candida but of other supposedly incurable issues as well.