Attempting to force a clog through a toilet with a plunger can often make the problem worse. Separate the clog from the surrounding trap. Before attempting to remove any plumbing, contact a plumber. If you are going to try it yourself, first clear the toilet area of items and debris. Wear protective gloves and safety glasses, as this is not a problem that can be treated with your bare hands. To begin, lift up the toilet seat and move it up as close to the wall as you can to get it to stand firmly on top of its base plate. This will provide a space from which you can pull when necessary (and also set up). Borrow or hire a large-sized toilet plunger for this repair.