I have been taking monistat 3 and i'm on my second day with it but i am having blood in my discharge since i started taking this. is it normal? and how quickly will my yeast infection go away once i'm done with my third dosage of the monistat?

Vaginitis/symptoms: There are many types of fungi ("yeast") which along with bacterial and viral infections could produce the listed symptoms. If Monistat 3 is effective for this particular infection, symptoms should ease in a few days. If not, you should see a gyn provider to be certain of the cause via a culture and exam, with treatment for other types of agents possible.