Botox is an injectable medicine that temporarily paralyzes or weakens muscles. The cosmetic use for Botox is to reduce the strength of the facial muscles that cause wrinkles to form. Botox can be injected in many places, but most of them are in the face.
In the face, Botox is FDA approved for the muscles between the eyebrows, also known as the glabella area. These muscles are known to cause the up-and-down worry lines between your eyebrows. Making these muscles weaker will makes those wrinkles fade away.
Botox is used in many other areas of the face, but most of these uses are “off-label”. Although a doctor has discretion to use Botox in different areas, these applications or injections may not be FDA approved. The more common areas include the forehead, to reduce forehead wrinkles, and in the sides of the eyelid areas, to reduce crow’s feet.
Botox can be injected around the side eyebrow areas to cause your eyebrow to arch higher or lower. This technique is more difficult than other types of injections, and you should rely on an experienced injector.
In Asian patients, the muscles that arise when the jaw is clenched can cause the face to look artificially wide. These muscles are called the masseter muscles. If Botox is injected into these muscles, then your face will look less wide.
Botox is used less often for use in the neck area, to reduce the muscle action of strong neck muscles during a large smile. These neck muscles tend to become more noticeable as you age.
Botox can be used to reduce sweating. The medical term of excessive sweating and perspiration is hyperhidrosis, where you can have excessive sweating of the underarm or palms. If Botox is injected into the sweat gland areas, then less sweating and perspiration will occur, due to the lack of activity of the sweat glands.
Botox has recently gained FDA approval for migraine headaches. Large studies, has been shown to reduce the number of headaches after injection compared to before injection.