Why do my minor shallow paper cuts sting and burn when I accidentally sweat on them?
1. Introduction Minor shallow paper cuts sting and burn when exposed to sweat because the sodium chloride and slightly acidic pH of the perspiration directly irritate exposed sensory nerve endings in the epidermis. A paper cut slices cleanly through the superficial skin layer, leaving microscopic nociceptors completely unprotected from the harsh chemical composition of the … Read more