Idk what to do help?

38w went to the doctor on Thursday with possible uti test comes back with negative but because I have a schedule c section we decided it would be best for me to take antibiotics just in case it was caught too early to detect well now I think I'm starting to get a yeast infection I don't want anything fucking up my surgery should I keep it to myself and do nothing call doctor and ask about taking monistat or just take it and say nothing Is it safe to take it 38w ? Or do nothing my pp bleeding should flush it out?