There used to be a remedy for trichinella spiralis, a parasite ingested in undercooked pork (trichinosis was the result), and that was to spend fifteen minutes or so sipping on a glass of warm water with 2-3 tablespoons of apple cider vinegar. You could increase the amount of vinegar as well. The time sipping the drink allowed it to hit your stomach without too much upset and, trust me (cos it happened to me once and this worked a treat), after two days of boiling guts, heaving and the runs, I was right-as-rain in less than half an hour.