Areola Tattoo

Hi everyone. I had breast cancer 9 years ago and had a mastectomy with immediate reconstruction with an implant but following radiation my implant was mis-shapen so I dedided to have it removed and my breast built up over the years with fat grafting. In October 2017 I completed my last fat graft and my boobs are amazing. I had my nipple reconstructed at the same time. I had a aerola tattoo done last year with semi-permanent medical grade tattoo. Since then my reconstructed breast has dropped down and the nipple is not in line with my real nipple on my right breast. I have since purchased a custom made nipple for my reconstructed breast from pink perfect prosthetic nipple, absolutely amazing product. My question is: how long does the medical grade tattoo last, as I want to get rid of the tattoo but don't like the idea of laser and was hoping maybe it goes completely from the skin in a couple of years. Anyone have experience of this?