I've been using letro at about .625mg or a 1/4 pill for 3 weeks now to try and reverse a puffy right nipple with a bb sized lump. At this dose, the puffyness has started to subside, but I don't think the lump has changed much. I'm going to bump up to 1.25 mg or 1/2 pill for another 2 weeks and see if that can ramp things up. I ordered more Letro that will be here in about 2 weeks. So, if the 1.25 mg's doesn't completely eliminate it, I will bump to 2.5 mgs until it does and then ramp back down. My question is, "How long is it safe to take Letro?" Is a total of 9-10 weeks if needed, doable?