Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
As per your complain and presentation of symptoms a lump on the jawline after
wisdom tooth extraction is as inflammatory swelling caused due to
injury to the soft tissues that occurs after any surgical procedure leading to inflammation and formation of a hard lump..
Another cause for persisting lump after extraction can be due to
Hematoma formation that occurs due to spillage of blood into the soft tissues forming a hematoma.
Nothing to worry as it will resolve gradually..
You can do alternate warm [not hot] and
cold compresses over the lump.
Take anti-inflammatory painkiller
Ibuprofen as it resolves pain as well as inflammation..
Do warm saline gargles.
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora.