Disclosed herein are compositions and methods for use in therapeutic procedures. Use of a “fast-acting” botulinum toxin for cosmetic treatment and/or to prevent or reduce scarring. “Fast-acting” refers to a botulinum toxin that produces effects in the patient more rapidly than those produced by, for example, a botulinum neurotoxin type A. The “fast-acting” botulinum toxin, for example, type E.