Does Botox really get rid of your wrinkles without any side effects?

botox
Stacey L asked:


I couldn’t believe Janice Dickenson was over 50. Just by looking at her face, she looks like a 30-something woman. I heard she had botox multiple times, which is why I assume she looks so much younger.

I heard botox only lasts less than a year. Is it true?
Is it very painful when you get a botox?
I will look forward to your answers. Thank you!