I am having moderate pain on my left side, as I examined further I noticed a lump that is very sore when pressed on.it is approximentley half way between my hip and underarm area. I am 61 years of age, will be 62 in December.I had some reconstruction surgery four weeks ago due to breast cancer.
According to the details provided by you, it looks like infection, something like boil. If it is small, local antibiotic ointment would help, if it is large and painful then you would require systemic antibiotics. Recurrence of breast cancer especially in that region is not common.