From A Wiki of Ice and Fire
The sweetrot is a disease common in Sothoryos.
Yezzan zo Qaggaz was infected with an unknown disease in Sothoryos, possibly sweetrot, which made him "rot from the inside out" for ten years.
- ↑ The World of Ice & Fire, Sothoryos.
- ↑ A Dance with Dragons, Chapter 47, Tyrion X.