I do not believe piercing will evert your nipples.The inversion is usually a loss of underlying support and retracting bands.I have found in-office correction with local anesthesia of inverted nipples has been successful for my patients.
Inverted nipple correction is done in my office on a routine basis and you do not need anything more than a local anesthetic. I use a procedure (Hartrampf operation) that works every time as opposed to other procedures. The cost is 2500-3000. See my video below
It sounds like you may have intermittent inverted nipples, which means your nipples invert sometimes but can become erect and not inverted at other times. This can be corrected with an inverted nipple repair, which is a straight forward procedure that can be performed under local anesthesia in ...