No Insurance, Need Pediatrician for Daughter's Rash!

I am recently separated from my husband and have moved back to the Ellis county area from Arkansas, until we can see if things will work out. He was laid off from his job and now we have no medical insurance. My daughter has one horrible big red spot on her genital area, with smaller spots around it as well as a rash on her buttocks (but it looks different from the spots on her bottom in front). I have looked up and searched symptoms on everything to figure out what it could be. *Before when we had insurance, I took her to the doctor and she said it was a yeast infection. Gave us some cream, and eventually went away.* I have used the cream that the dr. gave us before and now it's not working. I have tried hydrocortisone cream, Desitin, triple antibiotic ointment and even Lotrimin and nothing has helped. It even seemed like the Lotrimin made it worse and more irritated! So, I have no insurance and I'm trying to find a clinic or doctor's office that I can take my daughter to that won't cost an arm and leg!