* I had a really bad yeast infection from taking antibiotics for strep throat. I took the Antibiotics for 10days twice a day and after i had a yeast infection. 1 week now i have a sore and at first i thought it was from raw rough sex because it wasnt a sore but my vag lips were tender and then the sore came and it hurts. So is this herpes or a yeast infection sore?