I think the only lasting way to eliminate the big ones and not to have the infection getting worse is that you have to heal your gut at the same time. Doing a constant cleanse without a break and in the meantime rebuilding your gut (=rebuilding your immunensystem). There is simply no way you can avoid the eggs, they are all around. But if your system is strong your infection will be reduced. How long have you been sick? Months or years? Then at least some months before you will be better again. You can take as much medication as you want but without a strong and healthy gut it will not even be absorbed. And the same goes for the supplements. Have you changed your diet? Are you trying to live less stressful? Have you got any unprocessed emotional 'backlog'? All these things must be worked on all at the same time. Bone broth is powerful rebuilding the intestinal walls. So are all the green and the colourful veggies, including all salads. Have you got a hair analysis? Do you know which minerals are missing? Your body cannot function without these being in balance. Depending on the results, you can adjust your diet. You have to starve these pathogens out by eating well and at the same time nourishing yourself. And stopping all stressors in life- need to work but change all other aspects. Maybe look for another job?
I think if you are heavily infected the clark protocoll will not be strong enough. I have recommended this before, but i have read here about someone who had a pretty bad infection and she cleared up with a good diet, and herbs. She had lyme as well. She never stopped the treatment, did it continuosly and still doing maintenance doses each day. I think at first it was the Hulda Clark protocoll, then humaworm then dr sutter (all at the same time) but she still did not get the big ones. Then she tried olive leaf powder and she did it. I think she even posted her own recipe with many herbs in 1, search for it, her username is onwards. She said it took her a few months before the big ones came out. She did cleansing for almost 2 years.
I have been dieting pretty well the last 2 months and following an ayurvedic protocoll right now. I will add in the olive leaf powder just now. The ayurvedic protocoll was prescribed by an ayurvedic doc, based on examination. I got also a superb oil (shadbindu taila) which i use as nose drops, super powerful. This is for all those bugs that are in my head, lungs, nose, sinuses..
I am sure you can make it!

No, the herb oil has things like cumin, etc in it.
Does not have any of the standards like GBW, Wormwood , but i think it has clove. It' called Tape Parakill 9 oil blend. 10 cc per bottle

I don't know which species you are dealing with, but if it is tape I would suggest the herb male fern (Dryopteris filix-mas) root. Historically this was one of the most-used for tapes specifically and also generally for many species. If you live near trees it's also free to harvest.

Some of the larger ones can be stuck on to the lumen embedded in plaque- for these you can try castor oil on the skin over the area / castor oil packs.

I think he might have to give up before the worms though :)