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Use a glass of warm water with a pinch of salt to rinse your mouth thoroughly, or use water pik to flush the area where you feel the pain.
Rinsing well with Chlorhexidine mouthwash also relieves the symptoms.
Next Steps
Getting an x-ray of the tooth would make the position of the tooth clear, also the doctor can tell you if the tooth would grow more if the current position in its fully grown state (wisdom tooth erupts in the age range of 18-25years)
Health Tips
Good hygiene around the tooth usually helps it only the gums around the tooth is mildly infected, but if the tooth is not in a position that allows good hygiene maintenance, this infection becomes a recurring/ repetitive nuisance and sometimes leads to facial swelling. Do consult your preferred doctor to advice you the best on the situation.