Aside from high frequency current and moist heat, what else can stimulate nerves?

Chemicals can stimulate nerves through various mechanisms. When applied to the skin or mucous membranes, certain chemicals can activate sensory nerve endings. This stimulation can result from analgesics, irritants, or even nutritional substances that influence nerve function and activity. Chemicals can evoke responses from the nervous system by binding to receptors, leading to sensations such as pain, warmth, or coolness, depending on the specific chemical involved.

In the context of barbering and skin treatments, understanding how chemicals interact with the nervous system is essential for applying products safely and effectively. This knowledge allows barbers to use various chemical applications for hair conditioning, skin treatments, or scalp care while being aware of their potential effects on sensation and well-being.