This thread in itself shows the problem with homeopathy. It confuses people by using the names of various substances as labels for bottles of water and sugar pills that are sold to people. People then think that as these have the names of other medicines, they are somehow the same or a similar thing.
People over and over again on this thread alone have confused plant derived medicines with active ingredients with homeopathic medicine.
So if someone is given arnica homeopathic remedies and told to consume then, they do so, at no harm as there is in reality no arnica in it. What then happens if somebody buys actual arnica and consumes it, risking their health, because it's dangerous to ingest arnica, but they didn't understand that because they'd previously been misled by homeopathy?
Or the other way around, where somebody is buying something like the Rescue Remedy mentioned earlier, thinks it is the same as a homeopathic remedy, and buys a homeopathic one instead, and then their symptoms are not alleviated.
If a homeopathic remedy is labeled as arsenic, arnica or whatever, it should have to be clearly labelled that it is solely a bottle of water with no other ingredients, or just sugar with no other ingredients, so that people are clear about what they are consuming.
It is essentially deceiving people in a way that leads them then to not understand the health benefits and health risks of substances with actual active ingredients in them.