Many people wonder what the experience of Botox feels like. Here is a great article:

What can I expect?

People sometimes tell me they are scared that Botox injections are going to be painful and are often surprised at how painless the procedure is. ¬†Also, after about ten minutes, there is no evidence that you’ve had any injections. It then takes about 5 to 10 days ( varying from person-to-person ) for the effects to come on, and then by 2 weeks the full onset will have occurred.