I went to the OBGYN about a month ago and found out i had a bacterial infection called bacteria vaginosis. I was put on an antibiotic i took 2 times a day for 2 days. The symtoms went away and i thought i was treated until i noticed the fowl odor again. Is it common for these things to reoccur like this? I have a boyfriend and we have unprotected sex but when i noticed something was wrong the first time we didnt have sex until everything cleared.