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BOTULINUM TOXIN
Botulinum
toxin (Botox ) is a bacterial nerve toxin capable of causing
fatal food poisoning. In minute quantities, however, botulinum
toxin has been used by doctors for treating blepharospasm, a
condition causing twitching of the eyelid muscles and other types
of muscular spasms. It was during treatment of blepharospasm
that doctors noticed the loss of wrinkle lines. Since, then the
botulinum toxin has been used successfully and safely to treat
dynamic wrinkles such as forehead
frown lines and crow's feet. The botulinum toxin paralyses or
weakens the muscles that pull on the skin, hence reducing the
lines and furrows.
The toxin comes in a freeze-dried form and has to be reconstituted
and diluted. Minute quantities of the botulinum toxin is injected
directly into the muscle and the procedure is not very painful.
However, beneficial effect lasts only about 3 - 6 months after
which treatment needs to be repeated. One possible complication
is a droopy eyelid or eyebrow which is temporary, lasting 2 -
3 months. Botulinum toxin has also been used to treat hyperhidrosis
(increased sweating) of the palms and axilla (underarms). |