Lump near jaw behind ear at times it is swollen having a burning feeling in neck upper chest and across upper back. parts of body itchy.

Well: The lump could be a swollen lymph node which could mean an infection present you should get checked out immediately!

Lump, burning pain: Painful lump behind ear is typically an infection either in a local cyst or an inflamed node secondary to infection in the head& neck area. Painless lumps can sometimes be more sinister if hard and associated with a sore inside the mouth, neck area. Burning pain in neck, back, chest area maybe associated with nerves. Itchiness? See your pcp for a full assessment and get referred to specialists.