Many formulations of Tiger Balm contain methyl salicylate, an ingredient that the body metabolizes into salicylic acid. Testicle skin absorbs Tiger Balm, Icey hot, etc. much more quickly than regular skin. If you get this stuff on your skin, the chemical can build up in your blood stream just like if you had taken over a dozen or more aspirin. Your lungs can fill with fluid, and you can die. One of the symptoms of the poisoning is hyperventilating.

Pain killer in the chemical compound works against the effect you are going for, but it's some of the most unsexy ball pain there is.

Keep this kind of pain killer cream off genital tissue.