Hi,
Thanks for asking the query,
Wisdom tooth are mostly tilted in position and impacted in jaw bone which leads to pain.
The area is difficult to clean and invites bacterial infection leading to
redness , inflammation and swelling of the adjacent tissues .
The infection may spread further to jaw bones and spaces .
Painful movable lump near the jaw line can be because of
abscess formation .
I would suggest you to visit to an Oral and Maxillofacial Surgeon and get a checkup done.
Take an OPG x-ray.
Take complete course of antibiotic and
analgesic .
Maintain a good oral hygiene ,
Use saline water gargles 3-4 times a day.
Use 0.2% of
chlorhexidine mouthwash gargles twice daily.
Mostly you have to go for extraction of the wisdom tooth and
drainage of the abscess.
Hope this helps out.
Regards.....