What Could Blotches On Vagina With Foul Smell Suggest?

Hi, there was 2 blotches of white/yellowish almost plaque-like substance , about a little under an inch in length from (top to bottom) in the vagina. I'm not sure if the smell was odd or normal, it smelled unpleasant, but the vagina always seems to smell unpleasant. the white plaque-like substances were easily wiped away, but i'm worried as to what they are, or if they may come back. there is no pain or itching or burning or any other abnormal symptoms