sorry If this is tmi but I need suggestions! I'm 34 weeks pregnant and when I was in triage last…

sorry If this is tmi but I need suggestions! I'm 34 weeks pregnant and when I was in triage last doctor noticed I was irritated on the outter lips and told me to switch liners I did but I'm still irritated. its not a yeast infection or infection of any kind just irritation on outside anyone have this or any recommendations?