Arm lump

I have a few lumps in my arm that are painful they range in size from golfball to dime size and there is 4 total i noticed them 6 months ago and went to the dr they took a ultrasound and said it was lymph nodes and gave antiobiotics and sent me home to come back if they didnt get better well they didnt but they werent painfull for a long time now there is another lump and there hurting really bad im wondering what they are and if I should see a doc :confused:
Source: MD Health Forum - Medical Discussion Boards - Category: Consumer Health Advice Authors: Tags: Cancer Source Type: forums