“…Similarly, neuropathic mechanisms due to central (Albuquerque et al, 2006;Jaaskelainen et al, 2001;Hagelberg et al, 2003) and peripheral (Ito et al, 2002;Granot and Nagler, 2005;Lauria, et al, 2005;Just et al, 2010) nervous system impairment as well as psychiatric/psychosocial disturbances (Amenabar et al, 2008;Malik et al, 2011;Mignogna et al, 2011;de Souza et al, 2012;Schiavone et al, 2012;Adamo et al, 2013;Lopez-Jornet et al, 2015) have been implicated. Therefore, it is not surprising that diagnosis and management still appear an enormous challenge and enigma (Klasser et al, 2008;Klasser et al, 2011b).…”