Thank you, I will. I switched deodorant again yesterday. I had accidentally switched to an antiperspirant with aluminum. I have heard of people having bad things to happen with these.
Typically when lymph nodes swell it is due to an underlying infection (bacterial/viral), such as Mononucleosis, sinus infections, etc. But these would typically be swollen in the neck. Mention it to your doctor, epecially if it continues to grow; and if it does they will most likely do a Lymph Node biopsy to rule out anything serious. As for right now, pertaining to its initial size, I would not worry. Keep me posted. Best regards.