When in the shower, gently massage those hard lumps.  It is just milk sitting there and you should encourage it to move to prevent a possible infection.  Use circular motions as that has the greatest benefit and is less painful.

It took me a good 3 weeks for normal boobs to re-appear. I went cold turkey as my milk was drying. Lumps are the milk gathering in the ducts and laying there. Mastitis occurs if the ducts then become infected and blocked. I would go into the shower and use the showerhead on the lumps and massage them gently to try and encourage the milk to disperse or become re-absorbed, just be careful not to stimulate too close too your nipple or you'll be lactating! If your skin becomes red where the lumps are or in fact any patch of red is a likely sign of impending mastitis.

hi, i have recently just weaned my daughter off the breast and i was also getting the lumps,i didnt end up with mastitas i cut down to one feed a day in the mornings when i was most full and used cabbage leaves that i had frozen and had them tightly against me. it took about a week but the cabbage leaves were the best thing unbealievable with the pain when they get hot and soggy re freeze! very painful but will decrease even under hot water in shower hand express a little then use cabbage leaves. but the one feed a day helps and after 3 days totally stop.

good luck hope this helps.jo xx