What appears to be a foul smelling olive oil, is actually one of the Grand Enchantments of the Alchemical craft. It is an alchemical tool used to make flesh as moldable and mergable as clay.
A potion of great strength, it is a finely brewed tea that restores Constitution, as well as gives the drinker an unusual burst of Strength, due to the high levels of caffine. Tastes great chilled and with a drop of honey and lemon.
Itching dust makes someone or something itch. It is very distracting and only gets worse until the dust wears out or an antidote is applied.
The Petty Kingdoms is a region consisting of hundreds of small states. Some are kingdoms, some are city states, some are large farming communities, some are duchesses and baronies and so on and so forth. Within a few miles the PCs might reach a new "country" with completely different rules and norms than the one they left behind. "What do you eat here? Humans ye say? Lets turn around fellas."