Don't do it, and change your doctor. Anyone who advocates circumcision as a preventative for any std is a quack and needs reporting. There is a reason why the USA with the highest circumcised adult population in the Western world also has the highest std rates, it doesn't look like all their cutting has helped them much does it? It looks like circ'd men lose so much sensitivity that they really have problems with using condoms.
The only sure way to prevent stds is to not have sex or monogamous sex with an std free partner, the next best thing is to wear a condom, whether you're circumcised or not.
The only sure way to prevent stds is to not have sex or monogamous sex with an std free partner, the next best thing is to wear a condom, whether you're circumcised or not.