Frequently Asked Questions About Botox

  • Where do you put the Botox?
    The frown line between the eyebrows is caused by the action of a muscle called the corrugator. You can feel this muscle as a thickening just below the inside of your eyebrows, when you purposefully make yourself frown. Injecting Botox directly into the corrugator muscle stops the ability to draw the eyebrows together when you frown. Once the muscle is paralyzed, it cannot contract, and the frown line gradually fades away.
  • When does Botox start to work, and how long does it last?
    The results of Botox treatment start to appear in three to ten days. The treated muscles will gradually regain their action over three to five months. When the frown line starts to reappear, a simple repeat treatment is all that is necessary to maintain the desired results.
  • Who can perform Botox treatment?
    Botox therapy should only be performed under the direction of a physician experienced and trained in the use of Botox.
  • Has Botox been tested?
    Botox has been used since 1980 for the treatment of strabismus (lazy eye), and blepharospasm (uncontrolled eye blinking). Botox has been used for hyperfunctional facial lines since 1989. Major reviews of Botox therapy have been published in the Journal of the American Academy of Dermatology (1996; 34: 788-97), and Dermatologic Surgery (1998; 24: 1168-1254).
  • Are there any side effects?
  • The side effects of Botox treatment are mainly related to the effect of Botox on local muscles.
    • As with any injection, Botox treatment can cause temporary pain, swelling, redness, bruising, headache or discomfort at the injection site.
    • Rarely, patients have been reported to develop a slight lowering of an eyelid (ptosis), or slight lowering of the forehead. This is temporary and usually resolves in a few weeks.
    • Some patients may have an uneven or incomplete response to treatment.

    Botox does reduce the action of the muscles of facial expression. Patients with neuromuscular disorders should inform their doctor before therapy and Botox therapy should not be administered during pregnancy.

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