Hello, If your doctor has examined you and has mentioned that this lump is due to a lymph node swelling then there is no need of additional concern. Lumps in that area are most commonly due to enlargement of lymph nodes and the drainage area is such that the most common cause for enlargement is dandruff or other scalp infection. Also, they can be enlarged from some local infective process. Once enlarged, the enlargement might persist for quite sometime. Therefore you have to be patient before this swelling goes away. You only need to be concerned if the size of the swelling increases to more than 2 cm in diameter otherwise simply ignore it. Best wishes!