2006-11-13 22:08:23 · 3 answers · asked by luckylove 1 in Health ➔ Diseases & Conditions ➔ Skin Conditions
The central chemical involved in itching is histamine, a molecule released by mast cells in the skin. Histamine is the chemical that causes the itch and reddening when bitten by insects. It binds to local nerve endings on specific receptors. An itch from cutaneous (skin-related) stimuli, such as movement of small hairs on the body, is transmitted along the same pathway as pain. An itch caused by histamine is transmitted to the brain by a different neural pathway. As with pain, a histamine-induced itch travels via the spinothalamic tract, but in fibres specific for itch.
2006-11-13 22:18:59 · answer #1 · answered by The mom 7 · 1⤊ 0⤋
you probably have an infection or an allergy to something. causing an itch is the reaction of your body to fight off foreign bodies or bacterias. taking an antihistamine would decrease your itch since it will decrease the bodys hypersensitivity reaction.
2006-11-14 06:19:17 · answer #2 · answered by Anonymous · 0⤊ 0⤋
My mother told me that when its just a normal itch that it is your body trying to get rid of dead skin cells
2006-11-14 06:24:42 · answer #3 · answered by Cenya A 1 · 0⤊ 0⤋