Final answer:
The term for a burning sensation of pain is causalgia, which can be caused by actual injury or harmless stimuli that mimic harmful stimuli like capsaicins in peppers, and treatment can vary.
Step-by-step explanation:
The term for a burning sensation of pain is causalgia. This type of pain can be caused by true sources of injury or by harmless stimuli that mimic the action of damaging stimuli, such as capsaicins in peppers. Peppers taste 'hot' because capsaicins bind to protein receptors, which activate the same calcium channels as warm receptors, leading to the sensation of heat. Treatment for different types of pain, including causalgia, can vary from relaxation therapies to analgesic medications or more invasive procedures like deep brain stimulation, depending on the severity and cause of the pain.