I don't believe it! This sounds like a wonderful way to relax after a spanking. The young lady on the package seems to think so too.
The catalogue describes it like this:
Bring a century-old healing remedy into your next bath time ritual. Therapeutic properties in mustard include a healing blend of essential oils. Breathe in deep the scent of wintergreen, as chamomile, rosemary and eucalyptus oils gently relieve joint soreness, sleeplessness, and calm a stressed mind by first relaxing the body. Scoop a generous portion into warm bath water.
Maybe Ron had the right idea after all.
We were having a playful conversation in the kitchen while waiting for dinner to cook, and I used the opportunity to get a hug or two from Ron. As I put my arms around him I told him, "You were so hard on my bottom last night, I think you should do something to make it feel better now."
As I felt his hands move from my waist to my bottom cheeks, then gently squeeze and rub them, he asked innocently, "How? With a mustard plaster*?"
I pulled away and looked at him, surprised - and I must confess - excited. He grinned at me, and it was a very evil grin indeed.
I'd better not tell him about ginger. That man is creative enough already.
*A medicinal plaster made with a pastelike mixture of powdered black mustard, flour, and a small amount of water, spread onto a fabric base that is placed on the skin. Used especially as a counterirritant.