So I've had a small lump under my left nipple for about 3-4 years now. It was from a cycle and it never really bothered me, it's not huge or disgusting you can barely notice it. Is there a time frame where letro will only help to reduce it? Or could me taking letro now help reduce it after this many years. The lump has never grown nor shrunk it's stayed the same size this whole time and it still hurts if you squeeze it.

Thanks guys