Botulinum toxin injections are used in dermatology for attenuation of dynamic lines and wrinkles on the face and neck, for controlling of sweat in hyperhidrosis of axillae, hands and feet. The medication is a neurotoxin that works by temporarily inhibiting the release of acetylcholine causing a chemical denervation. Needs to be repeated every 4-6 months for the maintenance of the desired effect.
