I use a Medela PIS with plastic personal fit size large breastshields. On day 2 back to work, I notice my left side is already irritated and bleeding a little. Baby is 3 months old so I'm blaming my pump, not her latch. Would comfort fit or soft shields be any better? And is lanolin a yay or nay for these pump-irritated nipples? I notice my right side has some red marks too but there's no blood yet. Arrrrgh. I'm done pumping for the day so perhaps by tomorrow the boobies will feel better.