Infection around third molar can cause swelling around the gums.
Next Steps
(-) Visit a dentist or video consult
(-) Try to maintain good oral hygiene
(-) Brush twice a day
(-) Can take painkiller if it does not subside
(-) Avoid self medication
(-) Need proper xray or OPG for proper diagnosis
(-) Warm saline water rinses
Health Tips
In x ray or OPG it can be diagnosed that whether it is erupting or not. If it is in proper erupting position that nothing to worry about it, it will take time. but if their is any hinderence in its erupting pathways then you need to get it extracted. Everything depends upon the x ray findings.
Take care n stay safe