In today’s fast paced life no one has much time for relaxation. There are so many things to do in little time that sometimes we work more than what our body allows. All this makes us feel exhausted and over worked. Due to this we encounter pain in different parts of our body and if not treated in initial stage pain can increase considerably. To treat pain in any part of the body we take pain killers. You must be thinking how this pain relievers work. Basically these pain killers act on the points in brain through which feeling of pain is transmitted to different parts of the body. Though you will find people advising not to take pain killers frequently but in most of the cases you have to pop in pain relievers for getting relief from unbearable pain at a faster speed.