ive had a yest infection before but this one is different i got the itchy and the irritated part of it as well as the white discharge but now i also got this type of sore that burns when i urinate. Can this happen with a yeast infection? or does it sound more like genital herpes?

my girlfriend and i think she has a yeast infection but arent sure. she had the nasty discharge and chunky stuff. It is her first and we did try that over the night monistat stuff. now the discharge is gone along with the chunky stuff but there are a few sores that still remain. Does this sound like herpes or just a bad case of a yeast infection?