HI,Welcome to HCM.
Based on the facts of your query,you seems to suffer from-Acute
Lymphadenitis at base of skull and behind the right ear and is mostly due to
Acute mastoiditis with
Mastoid Abscess with vestibulitis causing the
dizziness with vomitting with lot of sweating.
As though itchy,the soft lump at the base of the skull which is very sensitive and painful to touch with 2 joining lump feel,indicates the mastoid abscess spreading to base of skull which is very near by side of mastoid destroyed air cells and which could be detected by CT Study of the mastoid and the base of the skull region.
I would suggest to get the
Second Opinion from Ent Surgeon and Neuro-Surgeon to treat this case after the CT mastoid and skull study with
MRI with gadolinium constrast study,if need be.
Possibility of -Accompanied-
Spondylitis needs to be studied,as a cause of dizziness with vomitting spell you had 2 days back.
Hope this would resolve the query of the cause of the itchy lump at the base of your skull and would help you to plan treatment with your doctors in this very complicated and challenging case of skull base lump of yours.
Welcome for any further query in this regard
Will appreciate writing your feedback review comments,to help the needy patients like you at HCM.
Good Day!!
Dr.Savaskar,
Senior Surgical Specialist
M.S.Genl-CVTS