Steroid
/ cortisone injections
One of the main
groups of Corticosteroids, 'glucocorticoids'
(e.g. cortisol, cortisone and corticosterone), are essential for a
normal response to stress and for the utilisation of carbohydrate, fat
and protein by the body.
Naturally occurring and synthetic glucosteroids have very powerful
anti-inflammatory effects and are used to treat conditions that involve
inflammation as is the case with many RSI-type conditions.
Corticosteroids act on the immune system by blocking the production of
substances that trigger allergic and inflammatory actions, such as
prostaglandins. However, they also impede the function of white blood
cells which destroy foreign bodies and help keep the immune system
functioning properly. The interference with white blood cell function
yields a side effect of increased susceptibility to infection.
As cortisone injections can be tricky to administer, they should only
be administered by a skilled practitioner. Anesthetic such as lidocaine
or Novocain is given to numb the area. The injection is then given and
pain relief should be felt almost immediately. Cortisone injections can
be useful in the treatment of an inflamed bursa, which may be irritated
by other treatments.
However, it is important to bear in mind that the injections tend to
give short term pain relief and often can be very painful when
administered.
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