In my opinion, the large worms have way too tough of an outer skin for the herbs to get to them unless you use a very heavy duty protein digesting supplement like the Doctor's Best 3000 GDU Bromelain. I take 1 pill three times per day on an empty stomach and it slowly digests the worm up. I know it is working because I've seen some updigested pieces get expelled and my stomach is getting flatter and it's feeling weaker but I can still feel it. My body is slowing getting stronger to fight it. Plan to take it for quite a while (several months) if your worms are large.
I also recommend taking the DE but it also works slowly against large worms. This requires lots of patience and dedication. Use meditation or other relaxation and Epsom Salt
baths to help you relax and stay on track. I never take a break from the Bromelain but I do take a break from the Wormwood
and also rotate in Oregano oil and Olive leaf extract. If you have lots of gunk in your gut it will be able to hide away and not get affected.
Eat raw garlic every day to help knock out the dead worm pieces and you'll keep feeling better as you get rid of it. Castor oil packs help also. I use a castor oil pack with a heating pad all night long while I sleep. Zapping has not helped me one bit either, it only makes it weaker for a short time and I even have the zapper with electropads that I can put right against my back and stomach. I also recommend taking OxyCleanse by Earth's Bounty to help flush out the dead stuff.
Good luck and hang in there - your inner guidance from God is what will save you.