Hello! Hoping someone can help me, so about a month ago I noticed a cord looking thing proturdung in my left arm pit its very uncomferatble and sore to touch. I just went to the Doctor today and they had no idea what it was and told me to put a warm compress on it daily and take 800 mg's of motrin three times a day. Just frustrated that I still have no idea what it is, if anyone has any advice or answers please let me know! Thank you.