What else can I do to try to improve the situation? Maybe a more effective cream?

To try to improve the situation, you could consider using a more effective cream. It seems like the nipples are particularly irritated while breastfeeding, but there is no pain, just discomfort. It might be helpful to consult a healthcare professional for further guidance and consider using a thin layer of 0.5% hydrocortisone cream after each feeding for 48 hours to see if there is any improvement. Additionally, seeking support from breastfeeding organizations that offer consultations with lactation consultants could also be beneficial.