What Causes Swollen Vagina And Vaginal Bleeding With History Of Yeast Infection?

About 2 weeks ago i bought a generic monistat 1 bc i had a yeast infection. I used as directed & it caused more problems thn i had. It caused alot of pain (it was so swollen it was hard 2 get a tampon in), blood tinged discharge, & thn full on bleeding worse thn my period by the 3rd day. It took @least 5 days b4 things were back 2 normal. Thn i go a week with everything fine i thght but last night i douched & had pcs of skin (no blood) coming out. So of course using water i continued douching trying 2 get it all out . Well tht was a never ending battle. What is going on in thr what do i do about it???