Help!! Itchy rash!

I have a not so pleasant rash on my lady parts (or right next to them)... It started about a week ago and I thought it was just an ingrown hair, and then I thought it was an allergic reaction when it got worse. But now I don't know. It's itchy, and has some blisters. It's also red and slightly inflamed, and is very uncomfortable. I don't know what to do at this point. I've been putting an all natural ointment on it that is suppose to help heal anything, but I can't tell if it's getting better or worse. Any help would be greatly appreciated