The cause of fibromyalgia is not fully understood. It is thought to be a sequel to some viral infections like that due to Epstein-Barr (EB )virus; super sensitiveness to pain or lowered threshold of pain in brain.
Understanding that fibromyalgia does not progress to any difficult disease is the main assurance to a patient and makes her/him mentally stronger. There is no full proof drug treatment for this disease.
Before embarking upon the drug treatment; lifestyle modification, pursuing an active life; positive outlook, healthy diet, stress reduction and enough sleep are to be tried.
In drug treatment simple analgesics like acetaminophen can be tried. Other drugs approved by USFDA are antidepressants like duloxetine and milnacipran; drugs like gabapentin and pregabolin having effect on central nervous system.
Massage therapy and acupuncture also has positive effect is reducing pain in fibromyalgia.