Inquiry about preparing for botox injection

hello!

On the spot when getting botox

Rather than preparing the medicine in a bottle,

They said they would administer the treatment using a pre-prepared injection.

As expected

It's been a week and I still have wrinkles.

In this case, the reoperation period is 3 months.

Could you please adjust it again?

What are the problems when re-operating?

And why not just administer it straight from the bottle?

Do you prepare the injection in advance?

I'm curious.