Pick an ailment to see every tradition that treated it, laid out together with region, era and scientific support.
Counterirritant - skin irritation draws blood flow & warmth to loosen congestion
Believed to 'release chest congestion and reduce internal hotness' of a cold
Bitter astringent taste believed to 'cut through' phlegm and warm the chest
This is a historical and cultural reference, not medical advice. Many of these remedies have never been scientifically validated, and folk reasoning (humoral theory, “hot/cold” classifications, spiritual causation) reflects older explanatory traditions rather than modern medicine. Ratings reflect community opinion, not clinical evidence.