Bloody smelly discharge!!

Sorry, might be graphic but I had my period a few days ago and I had a tampon in and it kinda was uncomfortable so I took it out and used a pad for the rest of my cycle. I felt like an itch near my opening and it was just uncomfortable. My period ended a few days ago and it still hurts a little, there's a bad smell like period blood even though I'm showering and cleaning down there with water and there keeps being bloody discharge. What's going on?? This has never happened before I don't think.