Vahide Sahraian and Shabnam Kolahi
When the tissue, which they are pain receivers or transmitters, damages or hurts, pain happens. Sometimes, the reason of that is complex and ambiguous. To examine the pain continuously is vital and necessary. We need to know the pain receivers and also their directions to the brain. One of the steps for curing is to examine the person’s verbal descriptive and his/her behavioral observations correctly.There are many ways in order to remove pain for the patient, for instance anti-pain drugs.Analgesics are drugs that can omit or reduce the amount of pain without decreasing the consciousness, and they are used in different ways. These materials prevent nerve conduction. Such these techniques can make the inhibitor fibers in spinal cord active or maybe it can make descending antinociceptive system active. These drugs prevent from movements of Sodium and Potassium ions in nerve tissues, and also prevent nerve depolarization, and affect in synapses against Acetylcholine. From these drugs, we can mention local numbing, opiates, and non-inflammatory and non-steroid drugs.
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