S.C.
Use oxiclean....it works wonders. There is even a dye/perfume free kind (that's what I use) or try the baby formula...I think it has a pink lid. Anyway, I use a scoop of it in every load of my son's clothes. When his baby clothes had stains that came back (prior to when I started using oxiclean in the wash) or odors I did the oxiclean "bath". Put all the problem clothes in the sink or tub, add super hot water and oxiclean...stir it around every few hours. After 24 hours, drain and repeat. Then wash. It took out old stains and odors from breast milk and formula. Hope that helps.