Corrugator and Procerus Rhytid Treatment with Botox
Cosmetic injection of Botox for glabellar rhytids was approved by the FDA in April 2002. To reduce pain and avoid blunting the needle tip during injection, avoid injecting too shallow or too deep: stay deep enough to be subdermal, but not so deep as to engage the periosteum. Pain may be reduced by palpating the supraorbital notch and thereby avoiding the vertical course of the supraorbital nerve. Stay 5 mm superior to the eyebrow to reduce the risk of eyelid ptosis.