How long does the effect of pore skin Botox on the butterfly zone usually last?

As summer passed, my pores in the butterfly zone became enlarged and sebum secretion worsened, so I am considering pore skin Botox.

I am drawn to it because recovery is faster and the pore-tightening effect is immediate compared to lasers, but I am hesitant because many people say that since it is an injection administered to the shallow layer of the skin, the effects only last for about 2 to 3 months.

Furthermore, I am worried that if I get hit too hard, I might experience side effects such as my facial expression becoming awkward when I smile or the corners of my mouth not going up.

For those of you who have actually received pore Botox in the butterfly zone or T-zone, how long did the effects last?