Hello,
Since when do you have this pain ?
Do you have a fever ?
Regards,
This can be an inflamed lymph node, caused by an infection aroung the armpit / breast area.
You need to have this examined by a doctor and also probably have a Needle Biopsy to confirm an infection, as this has lasted a long time and needs to be treated appropriately.
Kind Regards, Dr.Joshi
P.S. Please click *** ACCEPT *** if you are satisfied, otherwise I do not get paid for my work and JustAnswer holds your Deposit.
Doctor
Medical Diagnostics : X ray, CT Scan, MRI, Ultrasound, Angio. Caring Doctor. Your Health, First !