How To Treat Cyst On My Lymph Node Of Neck?

hi i am diagnose that i have cyst on my lymph node on the left of my neck but what i am feeling is on the right and i think the secretary of the dr had a mistake i also have enlage tonsil on my right and the lump i am feeling too is on the right which i do believe that this is the cyst they are refering i want to know if this is bad or not