Blisters from chafing

This has never happened before but I’m getting such bad blisters on my inner thighs near my pubic area. Hurts so bad I’m constantly putting aquaphor like stuff on them and bandaids to help protect from rubbing but nothing seems to help. It really hurts to walk and they’re rubbing raw. I just had my third baby so I’m a little bigger than I normally am but I’ve had my thighs touching before and never had this issue. This happen to anyone else? I need any advice 😞