I enjoy coating the butt plug with it before I take mine out for her daily 2 mile walk. It is fun watching her try to disguise her discomfort in public.
The beauty of Icey Hot is that once it is put in her there is no way to reverse the effects until it wears off over time and she knows that. It is devilish and I love watching her deal with the situation.
I'm sure she deserved the Icy-Hot treatment and probably a good caning to go with it! LOL I had one subbie that thought she wanted to be a slave until I did this to her.