Hello
Extraction means tooth removal
18: upper right wisdom tooth
38: lower left wisdom tooth
You will most likely be able to appreciate whether pain and discomfort is on left side or right side.
But it will be difficult for you to specify whether the tooth is upper or lower ( as that is the basic nature of tooth pain)
Next Steps
Visit your dentist and get it checked properly followes by treatment
Health Tips
Don't rely on medicines, if you have been having cheek bite due to it, don't ignore it.