|Pain is complex. Pain management is nothing but an important ongoing pain control, especially if you suffer with long-term or chronic pain. After getting a pain assessment, prescription is needed for pain medicine, other pain treatments, or psychotherapy to help with pain relief. Treatments for pain management involves with medications, therapies and yoga techniques. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information.The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.