What is Pain?
http://glennatkins.com/zWBegS0Nnc Pain is an unpleasant and annoying feeling often caused by damage stimuli. Pain impulses are generated from the nervous system. It is further classified into Acute Pain and Chronic Pain.
Acute Pain: Pain that comes on quickly, though can be severe, but stays for a relatively shorter period of time. It could be a reason of sudden injury, infection, soft tissue injury etc.
tretiva 20 for acne price Chronic Pain: Pain that stays for a longer period of time than the acute pain. It persists for the period of more than six months and it is difficult to resolve with common medication and treatments