Re: Question about blocked ducts
I've had many plugged ducts...in my experience, the pain relief was immediate but sometimes a little soreness (no real pain) would linger. I also had good luck massaging in the HOT shower and pumping right after while still massaging. Make sure the massage is gentle, though because you don't want to cause more damage. My LC also advised icing the area after nursing/pumping and ibuprofen both for pain relief and to thin out the milk a little.
Wife to J, Mama to W (3/06) at 32 weeks, C (10/08), and H (2/11)