after bleeding my brakes and noticing that the fluid keeps getting lower after using the brakes...i noticed a puddle coming from the rear drivers side rear drum brake my question is how do you get the drum off and what inside could be causing it to leak this much brake fluid?

 

just make sure the parking brake is off, the drum should just pop off. you might have to pry it out carefully, but there should be nothing else keeping the drum on.

your wheel cylinder (rear brake piston) is probably leaking. replace it immediately.