I have a swollen lymph node in my left armpit that has been there about a month and now a shooting pain in my right armpit just started.?

Lymph node: You need to see a surgeon quickly. It could be benign but, it is better to make sure.

Axillary node: Axillary (arm pit) nodes are lymph nodes that enlarge when the body is processing an issue. They can enlarge with a common cold, a infection on the arm somewher (even a cat scratch), and more rarely can be an indication of cancer. Most physicians start with a good history and physical. They may start with a brief course of antibiotics. If it persists beyond a month - a biopsy may be indicated.