This is touted as an ancient arthritis remedy from middle Europe.
There are many versions of this out there, but all I can find lately are ones that recommend soaking the raisins then discarding the vodka and eating the raisins. The version I have always used involves soaking the raisins then straining them out, drinking the vodka (not all at once!) and nibbling on the raisins.
Whether it works for you or not, it is fun to do and fun to try, and helps keep you warm at night:
Vodka Raisin Arthritis Remedy:
8-oz canning jar
Half-fill the jar with raisins; add 2 tsp sugar or warmed honey, then fill up with vodka almost to the top of the jar. Top with screw-on lid, invert & shake gently, then store in cool place, repeating the inverting & shaking twice daily for 3 days. On the 3rd day, strain the vodka-soaked raisins to store separately; return the raisin-infused vodka to the jar, cover, and store both in the fridge.
Take 1-2 tablespoons in the evening along with a few raisins; repeat throughout the following several evenings. It was originally recommended to take this 3 times a day, which is good if you don't have to work!