You can try wearing socks and walking around the house in them. If it's a case of rubbing then you can try a friction stick like the Band Aid one. http://www.drugstore.com/band-aid-active-friction-block-stick/qxp163404
As an owner of many, many pairs of Revas I highly recommend trying these on in store if at all possible because the sizing varies slightly from season to season. Mestico, vegetable tan and suede have the most give and can be stretched pretty easily, especially if using a shoe stretcher. These also tend to run TTS. Tumbled leather varies. I have some that are TTS and others where I went up half a size. Straw, canvas and patent are the least forgiving and tend to run smaller. I also don't know anyone with narrow feet that find Revas comfortable.
Thankfully, after going through my Goldilocks phase my biggest problem now with Revas is the dye rubbing off on my feet after the first few wears .
Thank you so much for the advice! I love these shoes and want them to be as comfortable and they are cute! I think the friction stick would really help also I am going to continue walking around in socks with them. I bought my shoes in stores and tried on my true size and a half size up. I bought the half size up because there was more room.