I'm finally going to get Botox because of my frown lines!

I have a bad habit of frowning intensely without even realizing it, whether I'm working at the office or looking intently at my smartphone. As a result, deep, distinct wrinkles formed between my eyebrows before I knew it. Whenever I apply makeup, foundation gets stuck in those lines, making me look at least five years older than my actual age. People around me strongly advised me that once these wrinkles appear, I must get Botox to tighten the muscles before it's too late to prevent them from deepening further.

Since it is the first time in my life getting a needle put to my face for cosmetic purposes, I am a little scared and nervous. However, because Botox is so popular and the procedure is simple, taking only five minutes, I mustered up the courage and booked an appointment at a dermatology clinic near my office on my way home tomorrow. I heard that it is best to get a safe product without resistance, whether it is domestic or imported, so I plan to get a thorough consultation. For those of you who get Botox to prevent frown lines like me, how long does the firming effect usually last after just one injection?

I heard that you need to get injections regularly at the appropriate intervals before the effects wear off completely to prevent wrinkles from forming at all. I am curious how often you seniors get Botox injections.

Please give me some tips on how to get hit without getting a bruise!