Yeast infection

I think I’m having my first yeast infection this pregnancy and I’m not sure what to do. I’m 28 weeks pregnant but I will not be able to go to the doctor until Tuesday because of the holiday. Also, I’m reading that it’s only recommended to take something like monistat while pregnant instead of a pill. Is this true? I’m so scared of monistat burning really bad if I do have it and the thought of putting cream up there freaks me out.