What does your rash look like and where is it located? There is a thing called Perioral Dermatitis that needs to be treated with Antibiotics .It is something only women get (how great) for the most part. They don't know what causes it. They suspect it's hormones. If it's on your face (around nose, mouth, on your chin) and the bumps come and go , they are itchy and red...then it's possible you've got that. I've head it. At first, I thought it's yeast related, but only Antibiotics could cure it.