Complex sentence: Since prehispanic times, this plant has had medicinal purposes and it is thought to cure stomach ache, parasites, diarrhea, liver illnesses, vomit, indigestion, toothache among other illnesses.
Split into simpler sentences: Since prehispanic times, this plant has had medicinal purposes. It has been used to treat stomach ache, parasites, diarrhea, liver illnesses, vomit, indigestion, toothache among other illnesses.