The capability of the brain itself to suppress input of pain signals to
the nervous system by activating a pain control system 3 major
components: 1) The periaqueductal gray and periventricular areas of
the mesencephalon and upper pons. (2) the raphe magnus nucleus.
(3) a pain inhibitory complex located in the dorsal horns of the spinal
cord.
factors modifying
perception of pain
-biological: sex, genetics & number of nociceptors.
-psychological: fear of pain, depression, emotional
stress.-social components: Person’s beliefs, attitudes or
expectations.
Dermatomes
management
pharmacological
NSAIDS
MoA: Inhibit cyclooxygenase enzymes
OPIODS
Antiviral Drugs: Acyclovir
non-pharmacological
-Transcutaneous Nerve Stimulation (TENS)
-Cognitive and behavioral therapy -Heat and cold
–REST- Physical and occupational therapy
-Psychotherapy -Lifestyle changes
peripheral neuropathy
nerves of the PNS have been damaged because of
1-herpes viruses:VSZ , 2-Bacteria, 3-Autoimmune
varicella zoster virus that cause "shingles"
mechanism of spread
signs & symptoms
Pain, burning, numbness or tingling
-Sensitivity to touch.- A red rash that
begins a few days after the pain
-Fluid-filled blisters that break open
and crust over Itching Fever
-Headache.- Sensitivity to light .-Fatigue