My sister was 14 years old when she started having black dots around her left nipple. The dots where not forming lumps but instead, they were the same with the healing wounds on the skin (the clotted covering on the skin before a wound heals) and they appear like a flat skin mole. It started with only one dot and she taught it was a dirt so she forcefully removed it and the next days, she observed that the areas around her nipple started to produce liquids but I'm not sure if it is a pus but the liquid is yellowish. She covers the infected area with tissue and to dry it up but the situation remains the same for a long time. My aunt gave her an ointment after she told us about her situation and the ointment worked. Her breast went back to its original state but lately, this January, she told me that there are again black dots forming around her nipples only that it was on the other breast already. The right breast, which was not formerly infected, is secreting yellowish fluids and the left breast which was formerly infected is now again surrounded with black spots, even on the opening of her nipple.
I've been searching for a similar condition on the internet but I can't find one. So I thought of citing this kind of situation to hear some news from the experts to see if my sister already need to seek medical assistance from doctors.
Thank you for any advise!