Thanks for your question, Snickerdoodle123 (and great profile name!)The real question is whether that is a fatty deposit or what is called ectopic breast tissue, that is, breast tissue that is the underarm as a result of embryologic development. Sometimes we can determine which it is based on some questions: was it there when you were at a lower weight? is the area responsive to weight loss? does it change with your menstrual cycle or pregnancy? does the site feel like other areas in the body with fat deposits or is it more firm? does the area get sensitive or tender?Only after these questions and a physical exam can real treatment recommendations be made. If we believe the site is breast gland, then a surgical solution is usually recommended, though the relevant procedures are often minor. If the area is felt to be fat, then kybella, coolsculpting, focal liposuction, or excision can be entertained, and relative assets and liabilities of each approach can be discussed. When stay at home orders are lifted, I would encourage a formal consultation. Good luck.