Hi,Welcome.Based on the facts of your query,the lump behind ear,seems to be Post-auricular Infective
granuloma ,with fresh blood bleeding.
Such a lump, could be from
Abscess in Post-auricular
Lymphadenitis,or
dermoid cyst/ or Cancer.
Treatment would depend on-
its cause and stage of the tissue of the lump-
Hence I would suggest you to have a opinion from a ENT Surgeon,who would investigate the lump by FNAC
Biopsy and would treat this lump according to the cause of the lump.
Hope this would help you to plan further treatment with your doctor.
Will appreciate your Hitting thanks and writing excellent review comments to help needy patients like you.
Welcome with any other further query in this regard.
Good Day!!
Dr.Savaskar,
Senior Surgical Specialist
M.S.Genl-CVTS