Thanks for posting your query.
You should be worried because a swelling in that region can be due to a local infection of parotid gland
or a malignancy, It can be due to reactive lymphadenitis
You should get examined by a physician and get investigated.
Being proactive for early diagnosis and management is of paramount importance in you case.
I hope this answers your query.
In case you have any follow up queries or doubts, you can forward them for me, and I shall be glad to help you.
Please accept my answer in case you do not have further queries.
Wishing you good health.