Really gummy smile - Botox/Lip Fillers

When I smile, I show a lot of gum. Like heaps. In photos, it makes my mouth look like I have overdosed on lipgloss but it is really just saliva on my gums.

I dont wear lipstick/coloured gloss because it always ends up on my teeth :(

I remember a dentist saying to me I could have my teeth lengthened by them removing some of the gum. It sounded horrific to tell youth truth and it wouldnt last anyway.

So I have been doing some searching and found that botox above the top lip will help plump the lip and stop it lifting as much when I smile so it wont disappear.

I mentioned it to DF and he thinks I am absolutely crazy and doesnt approve but I want to continue to do some investigation.

Has anyone had botox on their lips?
How long did it last?
Were you happy with the results?
How much did it cost you?


Thanks in advance