Botox is widely used for facial muscle and wrinkle treatment, correction of square jaw.
Most common usage of botox is in aesthetic field. It is injected on forehead, between brows,
wrinkles, muscle on calf and under arm for excessive sweat.
It is also used for neurologic field such as sclera view, muscle spasm, muscle paralysis and etc
A Belgian doctor found a germ caused food poisoning after eating rotten sausage or meat, that anaerobic germ was toxin paralyzing the muscles.
Botulinum toxin is secreted from bacteria which called C. botulinum, it has 8 kinds of type. Two of them, botulinum A and B is used for medical purpose after the refine.
This toxin acts through 3 steps, 1) combinate with receptor which placed at terminal, under the motor nerve 2) move into terminal of nerves 3) paralyze the muscles through blocking secret of Acetylcholine at nerve root. At first, it was used as medicine for cure the myotonus like eyelid spasm, neck spasm(muscles of neck contract so neck looks unnatural, like tilted). But in this cure process, it was founded that have an effect of making disappear wrinkles of injected Botulinum part. After that, it starts be used for cure the wrinkles as beauty treatment purpose.
So now it's used for cure eyelid spasm, face cramp, myotonus and also remove wrinkles and correct square jawline. Actually that 'Botox' means name of medicine which commercialized Botulinum toxin A, not an official name of treatment. Botox treatment means all type of method which using this Botulinum toxin.
Clostrodium botulinum secrets 8 kinds of exotoxin, and strongest one of them is toxin A, mostly known as Botox. Toxin type B is used also, but it works faster, keeps shorter than A(in 24 hours) and more painful when it's injected.
The methods and the effect of the injection
Without anesthesia, it's little painful but tolerable. If you are sensitive to pain, you can put on topical anesthetics.
Botox injection doesn't mean damage your nerve. After 2~4 days from the injection, strength of muscles get weaker and totally paralyzed after 7~10 from the injection. But if you inject much, it works faster and more great.
Amount of the injection
It's difficult to decide the amount of the injection, because it depends on type of muscles and different with people. For example to remove the wrinkles between eyebrows, every doctor has different opinion from 5U to 50U. Although usually AONE uses around 15U to remove wrinkles between eyebrows, especially people with the developed muscles due to using it many times or the male patient need more injections