allodynia

Introduction

other pain

Classification

• pain from stimuli which are not normally painful
• pain which occurs other than in the area stimulated
• tactile allodynia:
  • pain in response to light touch/pressure
  • pain in response to brushing
• thermal (hot or cold) allodynia
  • pain from normally mild skin temperatures in affected areas

Etiology

• peripheral neuropathy
• postherpetic neuralgia
• fibromyalgia
• migraine
• complex regional pain syndrome type 1 (reflex sympathetic dystrophy)

Epidemiology

• more common in women than men
• prevalence diminishes with age

Pathology

• neurogenic inflammation ?

Complications

• headaches
  • tension headaches
  • migraine headaches
• depression
• obesity ?

Management

• treatment of specific etiology
• if specific etiology not apparent, consider treatment as:
  • neuropathic pain
  • reflex sympathetic dystrophy
  • fibromyalgia

More general terms

• sign/symptom

Additional terms

• dysesthesia
• pain [odyn-]