Hi,
Menorrhagia is usually treated step by step.
The first step is with medications. Here, the medicines used are NSAIDS, OCP's and Progesterone, like Provera.
In the second step, conservative surgical procedures like Endometrial ablation are done.
In the third step, Hysterectomy is done.
So it would not be advisable for you to think of a hysterectomy directly. You should try first with the Provera. If your bleeding is die to some hormonal abnormality, this might correct your bleeding. If this does not work, then you should consider the option of an endometrial ablation. If bleeding continues, then you need to go for hysterectomy.
So go ahead with the medicines first. This is the first step.
You can look up here:
http://www.mayoclinic.com/health/menorrhagia/DS00394/DSECTION=8I hope this answer was helpful. If you need more information, feel free to ask. For accepting this answer, please click on the green 'accept' button below. Feedback/Bonus will be warmly appreciated.