I am stressed because a lot of my gums show when I smile. Would gummy smile Botox be effective?

Hello. I am writing to inquire about a complex I have about my gums showing too much when I smile. Whenever I take a photo or laugh hard, my upper lip tends to pull up too high, revealing my gums clearly. As a result, at some point, I started covering my mouth when laughing in front of people, or I became self-conscious about smiling at all.

I was recommended by people around me that gummy smile Botox would be helpful in cases like this, so I am writing this post to see if it would be effective for me as well.

I would like to know the principle by which this procedure reduces gum exposure, when the effects typically appear, and how long they last. Additionally, I am concerned about the possibility of my smile looking awkward or any potential side effects after the procedure; I would appreciate it if you could explain these aspects as well. I know you are busy, but I would be very grateful for your response!