Although aqueous solutions of 'slaked' lime are alkaline, its solubility in water is so low that the solution would not be a caustic hazard (causing chemical burns) used in a hand warmer.

Getting a chemical burn on your face is scary, but luckily it's treatable. Here's how to care for your damaged skin and prevent any future injury.

Colloquially dubbed “jalapeno hands,” hot pepper exposure can cause ... Capsaicin doesn’t actually damage your skin like a heat or chemical burn. It just triggers your body’s pain receptors.