see below answer
Welcome to HealthcareMagic .
Swelling in that area could be most commonly due to lymphnodes
, next causes are lipoma
Since it is on right side so no need to worry too much. These conditions needs clinical examination for diagnosis.
I would suggest you to consult your doctor to confirm the diagnosis and for further management like excision if needed.
Hope I have answered your query . If any further queries are there I would love to help . .