idk if it's the same but i had alot of discharge since my 2nd trimester and it would make my inner thighs super sticky. This led to chaffing and my skin would be pretty raw by the end of the day. It hurt like hell to walk around.
I resolved it by wearing long maternity dresses and no underwear, cos this was happening whenever I wore underwear. I'll wash and dry that area as often as I can during the day too, to keep it clean and avoid infections etc
idk if this is the same for you but I hope it helps. I have not had chaffing since doing this 👍