Chafing in vaginal inner thigh region.

Hi, so 2 periods ago my pads started causing chafing. After my period it got a little better and I put cortizone cream on it to help with itching however it never fully healed by my next period and again the pads caused chafing. I typically use a pad and period cup. I am close to my next period now and it just won’t heal and it’s right in the crease and itches when I wear underwear as they obviously sit in that same spot. I tried different fabric underwear and same issue. What should I do?! I can’t keep dealing with this.