Not yet investigated
What we have so far
Years of heavy use, then cyclical vomiting relieved only by hot showers. An antiemetic plant causing intractable vomiting — and capsaicin cream, which mimics the shower, often works where antiemetics do not.
This star is on the map because the show intends to take the question apart properly — the trials, how it is actually tested, whether the thing sold is the thing studied. That work is not done yet, and nothing here should be read as a conclusion. When the investigation is published it will appear on this page.