Hey , I can understand tooth pain is worst pain.
As you are saying their is a while in wisdom tooth , and because of the location of the tooth , generally wisdom teeth are extracted . Also neither they help in chewing food nor can your brush reach there because of which keeping that area clean becomes a bit difficult .
Next Steps
Visit a dentist near by to get extraction of your wisdom tooth
Health Tips
You can rinse with warm water salt rinses along with that you can take some painkiller for temporary relief till you visit a dentist .