I'm curious about the pain and typical effects of deep nasolabial fold fillers.

I am under a lot of stress because the nasolabial folds around my mouth have deepened significantly, making my lips look protruded, likely due to frequent frowning while looking at a computer for long periods. With an important gathering coming up, I am seriously considering getting nasolabial fold filler treatment. I have heard that a large volume of filler is required because this is a highly mobile area, so I am apprehensive about how painful the injection will be. I would also like to know in advance if any stiffness or soreness persists after the procedure, such as when chewing food or going about daily activities. Additionally, how long does it typically take for the wrinkles to become smoothly filled in after receiving filler treatment? I would appreciate a kind consultation on when would be the best time to visit for the treatment to see the peak effect in time for my gathering.