Hello ma'am,
It will be approximately a 30 to 45 minute appointment in which you will be anesthetized so the treatment will not be painful.
After couple of hours you can eat and talk as well, and continue your daily routine.
The cost I'll be able to tell you after looking at the Xray but since it is lower third molar it will probably cost around 4k to 5k.
I can see your location as Pirangut which is not far from my clinic, so you are welcome to visit my profile and take an appointment. You can also visit any dental clinic in your vicinity.
Health Tips
It will be better if you don't delay the procedure much, so that the infection doesn't flare up.