Hi my dd had the db brace and I don't think the bar touched her at all, we always had a follow up appointment a couple of days after brace fitting (RCH MEL) for any follow up concerns, if you don't have a follow up I would give them a call and explain your concerns and see what they say. We were using cloth nappies which gave a lot of padding and coverage but also meant bar very curved so less likely to come into skin contact.