Chafing?

Ok so this a little embarrassing because it's in my groin/vaginal area! It's been getting worse because I'm working (the pants for the uniform are way too big on my legs, but good for my waist..so the crotch hangs down low and therefore rubs against my skin around there! It's developed into blisters. & now the blisters have spread to my labia! It's itchy so I know that probably means it's healing? I'm currently using baby wipes (helped a lot) and savlon antiseptic cream. I was using baby powder but have decided to stop. Are there any other suggestions to make it go away fast?