Yul, you may have started an run on this. I'm trying it out too.
For some immediate relief, ya'll might want to try this:
Soak a gauze pad in caster oil. Place it on the affected area and wrap it in plastic wrap. Put heat on it for about 90 minutes than keep it on overnight. Clean it off in the morning. Works for me. I'll sometimes use it before a shoot to prevent/delay the irritation. Active ingredient is ricin, but at very low levels so it is not poisonous. A cheap temporary fix, but can get messy. I use it when the discomfort is there or I anticipate doing something to aggravate it, like shooting frontiersman.