Sounds like vaginitis. I hate to say it but it can get real bad. My daughter had it and we had to get a cream to put on it from the doctor. yes you could probaly treat it naturally but you'll be waiting a long time for it to clear up and I don't konw that you want your little one to suffer that long. We noticed a difference with using the cream within one day and the pain went away but it could get serious if you don't treat it. I hope that helps. Good luck and keep us posted.