Hello Doctors. I had a tooth infection in which I went to the dentist and was given Amoxicillin 500mg to be taken orally tid tat. About 4-5 days into taking the antibiotics, I began having symptoms of what felt like a yeast infection (itching, burning, irritation, redness); I only get yeast infections when I take antibiotics. However, this time around, I have a pea sized, painful bump on the edge of my labia majora on the left side. My questions are what can this be; how long will it take to go away; and is there anything more I need to do outside of the OTC terconazole taken that I can take to assist with the pain and to make it go away?