drain clogs. you can purchase a small plunger that will fit in a sink more easily, and that should also fir the other drains in the bathroom. if the drain does not have standing water in it, you will need to add a couple of inches of water to it. the standing water helps the plunger suction to be more effective.
the plunger should be placed directly over the bathroom drain clogs, and then pressed down. quickly pull up the plunger, then repeat the up and down motion. this is a very effective way of loosening clogs that are not too far down the pipe. this work on bath and shower 