What can could my nipple piercing to hurt so much 6 monthd after getting it?

Scar tissue: build up or infection could lead to pain lasting this long. Get in to see derm to get treated correctly

Agree w Dr. Ablon.: Check for signs of infection: ^'ed redness, warmth, swelling. ^'ed tenderness, pus, red streaking, swollen lymph nodes or fever. Recommend keeping piercing in place unless directed by Dr (if removed – drainage tract will close up w ^'ed risk of abscess formation). Call Dr for medical evaluation. Your Dr may prescribe oral antibiotics or antibiotic ointments to apply to piercing site. Scar also.