If you think you have Liver Flukes, get a sample and have it confirmed by a Doctor or Lab, because you probably don't have flukes for how rare it is to get in the United States according to the CDC and if by the remotest of remote chances you do have flukes, it's easily treated by drugs like Triclabendazole.
Make sure you haven't misdiagnosed yourself. Don't trust your eyes that you "saw" them in the toilet after some kind of flush. Don't take chances. Get a sample and have it confirmed so you don't go down a dead-end path and waste your money chasing something that's not there.
READ from the Centers of Disease Control:
What is fascioliasis?
Fascioliasis is an infectious disease caused by Fasciola parasites, which are flat worms referred to as liver flukes.
Can people get infected with Fasciola in the United States?
Yes. It is possible, but few cases have been reported in published articles.
Approximately 20 cases in Hawaii over a several-decade period were described in articles in the 1950s. One case in Florida and at least one case in California linked to watercress have been reported.
However, most reported cases in the United States have been in people, such as immigrants, who were infected in countries where fascioliasis is well known to occur.
Can fascioliasis be treated?
Yes. Fascioliasis is a treatable disease. Triclabendazole is the drug of choice. It is given by mouth, usually in one or two doses. Most people respond well to the treatment.