Hello, Rox, welcome to the forum.
Read the following posts if you haven’t already done so.
In the end it’s going to be up to the probiotic to cure the infestation, and you’ll never do that with Threelac because it’s such a weak probiotic. Look for MegaFlora which is made by MegaFood. You may be able to find it in a local health food store, but here’s the link at Amazon so you’ll know what you’re looking for.
Let us know if you have other questions.