Back to the original question: Homeopathic "medicine." My understanding is that they take some random chemical, dilute it 10:1 or 100:1, repeat that process 25-1000 times, and then sell the resulting water as medicine. For example, a homeopathic ingredient labeled "25C" means it was diluted 100:1, 25 times. Leaving it diluted 1050:1. Meaning that if you used all the water on earth to produce this remedy, there would be about 1/5th of an atom of hydrogen worth of the original chemical left in it all, by volume (citation). I think it's criminal to package water as medicine and sell it, but apparently other people think differently.
Your understanding is quite flawed. Also, that's a rather useless citation which has nothing to do with medicine.
Many "homeopathic medicines" are legitimate herbal combinations with very good results. Others, less so.
One medicine may claim to help with gas and bloating to be taken at meals, and contain some crushed fennel. Others may be a supplement containing ginseng for virility, or ginkgo for memory, or a mild antidepressant containing St. John's Wort. All these are simple herbs, and all have been shown clinically to have very real results.
Many herbal remedies aren't packed up into tablets and sold at the pharmacy, but that's partly because they are mostly harmless and inexpensive. Why pay a small fortune directly and in insurance premiums for something that is already used as a common baking ingredient?
Drug companies don't bother to invest fortunes into clinical trials, and later into distribution and marketing of their medicines when those same medicines are available for a few cents on your grocer's shelves. Instead they will isolate portions of them, refine them, then sell those products at an extreme profit.
Once it was a tea made from willow bark. Sometimes doctors would use powdered willow bark directly in wounds as a poultice. A few years back the key chemicals in the bark were isolated, and now the same thing is sold globally as aspirin.
Once it was a homeopathic extract from purple flowers. It was one of the first families of drugs to be isolated and cultivated. It is now one of the most abused drugs in the world. Today many drugs come from opium plants, and opioid pain killers are on the list of the World Health Organization's critical emergency drugs.
Nutmeg tea is a very old traditional treatment for the cold and mild cough. Today several major cough medicines are based on nutmeg oil, and it is also a natural antimicrobial agent used specifically to fight strep.
I had a serious tooth infection that required a root canal. It was an incredible amount of pain. The dentist's advice while waiting for the appointment? He could phone in a prescription for painkiller to take every 4 hours, or I could swab the tooth every few hours with some clove oil that I already had in my cupboard. Not only is a few drops of clove oil great with ham and rice, but undiluted clove oil is antiseptic and used as a local anesthetic (painkiller) since prehistoric times.
Foxglove? They're a pretty purple flower that people plant around their house. It is toxic and has a great side effect of controlling mice, rabbits and other garden pests. It also has some ancient historical purposes, including poison used for murder, but people who planted it near their home also reportedly lived longer. Taken directly it can be fatal, but trace amounts of the pollen have several positive effects on heart health that traditional medicine noticed centuries ago. Foxglove extracts are sold as Digoxin and sold to millions of people for heart problems.
Garlic does more than scares away vampires, it was frequently given for many illnesses. Today we know it is an antifungal, antibacterial, and even antiviral medicine; it has a strong correlation as a cancer fighter, those who eat it regularly are less likely to develop certain forms of cancer. Garlic extracts are used in many medicines and are still being heavily researched.
Don't dismiss traditional medicines just because they aren't sold for a small fortune at a pharmacy counter, or distributed in a pill in a little plastic bottle.