I find threelac actually a good combination of bacteria that indeed may help get rid of candida; the problem with the product marketing and the irresponsible consumer is that a magic bullet is expected.
So if you plan on keeping the diet and doing the things that invited candida into your body, the best you can get with this product is a temporary relief.
If you reevaluate your diet, strengthen your digestive power (stomach acid, digestive enzymes, bile flow) in conjuction with a product like threelac, the chances are that the combined modifications are greater for you.
Having tested threelac via meridian biofeedback, it typically is a highly beneficial combination of strains for my specific body but that is only one piece of the puzzle.
I can't say it did miracles as candida is only a symptom and not the root cause of your problems