EDIT; doctor said it’s a fungal infection! Nothing found on ultrasound.
I have this mark under my left breast it was itchy I was prescribed steroid cream and the itch has gone but the mark is bigger, I went to see the dr two weeks ago, she found a small lump at this site, I have an appointment at the breast clinic tomorrow but noticed today the red mark is bigger, it’s not warm or itchy. It is peeling but presume this is from the steroid cream? Thanks from a worrier!!