Analgesia

Analgesia is the absence of pain that results from an interruption in the nervous system pathway between sense organ and brain. Different forms of sensation (e.g., touch, temperature, and pain) stimulating an area of skin travel to the spinal cord by different nerve fibres in the same nerve bundle. Therefore, any injury or disease affecting the nerve would abolish all forms of sensation in the area supplied by it.

The term is also used for pain relief induced by the action of such medications as aspirin, codeine, and morphine. A good painkiller can produce analgesia: a condition in which you're conscious but pain-free.

Pain management is an aspect of medicine and health care involving relief of pain (pain relief, analgesia, pain control) in various dimensions, from acute and simple to chronic and challenging. Most physicians and other health professionals provide some pain control in the normal course of their practice, and for the more complex instances of pain, they also call on additional help from a specific medical specialty devoted to pain, which is called pain medicine. Pain sometimes resolves quickly once the underlying trauma or pathology has healed, and is treated by dentists, with drugs such as pain relievers (analgesics).