What Causes Fishy Odor Discharge From The Vagina?

Hi, may I answer your health queries right now ? Please type your query here...The discharge started two days ago and at first it was a light itch but yesterday it was intense. I have notice the discharge has become yellowish however I think its yellowish because I have seen a little blood. There was was no odor at first. I bought Clotrimazole and it stopped the itching however I noticed a smell.it smelled like Nair hair removal. What is going on? I had Bacteria Vaginosis before and the symptoms doesnt seem like I have it because I remember the fishy odor which I do not have. What do you think it is?