It's good to see you have kept up the breastfeeding! Good job!
I'm not sure what you are referring to about getting another infection. Plugged ducts infections are no fun and certainly serious. From what I understand, you watch that you don't let the breast milk build up. I had to do some hand expression to relieve pressure when my baby was weaning. It wasn't that I had to do it a lot or for a long time.
The only other thing, that I want to comment on, is to be patient, use your motherly instincts, and let your baby lead the way. I was able to mention that there might be "any left" or that "mama's milk was empty". Snuggling became kind of a substitute. Oh, and don't hesitate to mention that you are getting sore at breastfeeding time (if you are) but don't scare him about it. Someone told me to just say something like "hmmm, I'm not comfortable, would you hold me tight for a bit?"
Good luck!