Many people will have to switch to different substances in the battle agaist the flukes.
Myrrh is also very effective.
Iodine is great.Ay sulfur is great, as in garlic, MSM, tar(topically only)...
Adjusting the diet to be as anti-critter as possible, and trying different things , as we all react differently to things.
Eventually, when your body is no longer a favorable environment for the "invaders',
you'll fid yourself free of all of them...