If a human was to get worms from dogs, how would the person know?
What are the symptoms? How exactly is it treated? Other than washing your hands regularly and after handling pets, what are some ways to prevent contracting a parasite? Do people poop the worms like dogs? What do the worms look like in a person’s stool?

I think I may have picked up Liver Flukes when I was in India for 6 months until April, but because I live in Valencia, Spain, I cannot get treatment or prescription medication (yes I know it’s supposed to be all one happy Europe, but try telling the Valencian health authorities that).
I have looked up the symptoms and they seem to match Liver Fluke, and that seems common in the east. I read that in Thailand people take Praziquantel every year as a matter of course on the assumption they will be infected, but I can’t find it for sale on the Internet. Anyone know where I could buy some?
I know prevention is better than cure, but without analysis I don’t think the right medication can do any harm if no worms are present?