Botox results generally appear within three to seven days, according to WebMD. The results from a Botox treatment typically last between four and six months, after which the muscles resume functioning. Wrinkles tend to be less visible with continued treatments as the facial muscles become accustomed to the injections.
When implemented by a medical professional, Botox injections are typically considered safe, according to Mayo Clinic. However, certain individuals may experience side effects such as swelling of the treated area and headaches. Additional potential complications of Botox include dry eyes and drooping eyelids. In rare situations, the toxic agent in Botox injections may travel to other parts of the body and cause serious symptoms such as bladder control issues, muscle weakness and breathing difficulties.