Usually when wisdom tooth erupt this swelling occurs and it is called as pericoronitis. Home remedies I suggest will be do a salt water rinsing for couple of days but this won’t resolve ur problem. U might feel better doing this .
Next Steps
First we should know whether the tooth is erupting correctly or not if the tooth is in the wrong position we prefer for extraction, I prefer u consult a dentist to know about this hope I
Health Tips
Salt water rinsing twice a might feel better but it won’t solve the problem