I have a hard lump on the left side of my neck and it hurts?

Neck lump: A hard lump on the neck that lasts more than 2 weeks should be evaluated by a physician. Sometimes you can get a cyst or swollen lymph node, but if it's lasting for more than 2 weeks a clinical exam is important to determine whether this is something serious or not. If you have fever, redness over the lump, discharge from the lump, or difficulty opening your jaw you should see your doctor asap.