It sounds like you have a good plan for using herbs to clean your gut. With the itchiness it sounds like possible pin worms? Psyllium is good to keep the bowels moving, you may want to research Hulda Clark or humaworm.com for de worming products all in one capsule, if u can order stuff online.

IMO:

Buy Dr. Kenneth Sutter's book "The Paradigm Shift" from http://www.docsutter.com/. It would guide you what to do the next.

Follow the protocol as it is, it also says the sources/brands to get them. Practical protocol that works, no need to starve yourself by doing trial and error and disturbing regular lifestyle.

p.s.: no way associated with the website referred to.
If one could go to mountainrose herbs' website, many necessary things can be found and these could be shipped too to your place. Altertaive is Pacific Botnicals. Google their websites.

It sounds like you have rope worm/mucoid plaque. What I've heard works is the blessed herbs colon cleansing kit. I made a modified one for cheaper that worked with slippery elm bark powder, Bentonite clay, activated charcoal and cranberry juice mixed together than drink a lot of water after. I did it twice a day for a week to get rid of the bloating and parasites

Plan on cleansing the worms out of your guts once a month for five days around the time full moon. Do it for one year. Then go on regular routine maintenance every 3 months, or 6 months as needed. parasites eggs will hatch out and they come back if you don't.

I would buy a head of garlic, pull off a very small clove, clean it and score it, insert anally before bed time to stop the itching. The first time you do this, it might make you need to poop really fast. Poop it out and put in another one. If you need to poop it out, poop it out too. Keep doing that until you can retain one. It burns a little but to me that is not as bad has the itching, especially if it is the kind of itching that is accompanied by the sensation that they are trying to drill holes in the sphincter muscle. They don't call them pinworms for nothing.

Keep in mind that it will really stink up the bathroom if you can retain a clove of garlic all night long and then poop the next day. It might even stink up your poop for several days depending on how far up the rabbit hole that little bud climbs. Maybe Mummy will let you do an enema if she smells it. Ha ha. You can start doing enemas once you can afford to get your own place and live alone. For now I know how miserable it is to have to endure the anal itching and I hope this suggestion brings you relief.

I do it all the time and it really helps me. But if you are sensitive to garlic or sulpha drugs maybe talk to the doctor about it first to establish a sense of safety. As for me, I am a risk taker, and I like spaghetti, so I just experimented. Since I eat garlic all the time and it never hurt me, I figured it couldn't hurt to insert some in the other end. And sure enough it didn't, unless you consider the burning sensation that makes the urge poop a few times a problem. Having suffered from constipation, I found it to be a relief.

I have cleared public bathrooms by dropping these kinds of poop bombs and heard all kinds of strange comments coming out of people's mouths such as, "What is that strange odor?" There are ways to make farts smell like somebody took a dump in the rose bushes, but save that for later. Mum probably wouldn't like it.