I got a shot of Kenalog by my dermatologist on 3/9. The next wee...

I got a shot of Kenalog by my dermatologist on 3/9. The next week I had a severe case of constipation, followed by hemorrhoids. Once those cleared up, I started my period (an unusual thing for me as I have an underactive thyroid and am taking synthroid for that and to help regulate my periods). As of this writing, it has been 28 days and counting of non-stop bleeding. My OBGYN has even put me on birth control pills to try to control the bleeding. Does anyone know if birth control pills will help stop the bleeding or does it need to run its course? How long before this stuff gets out of your system?