Are you like me? You like to try things yourself before calling in the experts. If so then it is possible to unclog minor sink and tub stoppages by yourself. Now I have to say none of these methods are guaranteed to work, but besides a little water in the face they won't do much harm if they fail.
The first thing to check is the pop up. You may be able to lift the stopper from the drain. If the stopper won’t lift out, that means it’s connected to the pivot rod. If you go behind the sink, you’ll see where the pivot rod and pop-up mechanism screw together. Unscrew this connection and remove the stopper.
Sometimes unclogging a sink or tub stoppage can be as simple as hitting the stoppage with a plunger. First you'll need to seal of any areas that air might escape, you want the force of plunger to hit the stoppage, not escape through the overflow. Use a wet rag and plug of the overflow or the side sink. Fill the sink so that the water level is above the rubber part of the plunger. Using the plunger, just as you would to unstop a toilet, hit the clog with all you got.
I recommend staying away from things like Drano or any of the acids. Not only can they be harmful to your health but they do more harm to your plumbing system and environment than good. Every year we come out to a house where the client has done thousands of dollars worth of damage to their plumbing system, either ruining the glues and plastics of their sewer line, or completely ruined their septic tank. My advice, try the methods above, and if all else fails call in a plumber.

