Actually you should be examined by ultrasound
to be done to exclude possible tumors (there can be malignant or benign breast tumors). It seems to me that you have under-skin inflammatory process (pustule or even carbuncle
which recur). There are can be some problems with your immune system and hormonal
production. Both should be inspected. Avoid much sunlight and be careful to your diet (eat more fruit and vegetables, especially a garlic and grapefruit). Smoking usually provokes such problems and bad water quality.
Wish you Good Health