I believe I have an infected Lymphnode under my arm pit. Would heat help to hurry along the healing. I assume it is a lymphnode because it is movable and very sore (especially to the touch). Any advice? (I'm sorry if I spelled Lymphnode incorrectly)

Ah you did pretty good on the spelling actually.

Have you been ill recently? This would cause an enlarged lymph node. There really is nothing you can do yourself. You may need antibiotics, so you would need to see the doctor for that. But if it is just from a cold or the flu only time will reduce the swelling.

Have it checked out by your doctor just to be on the safe side.