Nipple lesion. Centre. only on nipple!

Hopi-2years... Was diagnosed intially with fungal infection given neosporin bt not relived. 2nd tym was given tea tree oil.lesion size same on nipple. Appears dry flaky bt actual consistency soft as if dead skin cells.color changes from yellow to somewhat green to brown.appear reappear always.shed off while rubbing skin with towel very minutely after bath.no pain no itching except sometimed when rubbed off against clothe then slight itching .periods regular.nipples are inverted .appear on both nipple bt more on right one from starting.appear as if small multiple bumps filled with pus when yellow in color.then after some time appears dry .somewhat when in greenish state.consulted doctor for the first tym bcz of inverted nipple concern.base of lesiom appears as if some sticky thing is binding those flakes al together.base when see appears somewhat blocked and whitish in color.currently green in color.small pus like thing appear more on periphery and flakes appear in centre.only on nipple