[header] How to unclog a sink [title] Clear out the blockage with a bent wire hanger. [step] If you suspect that your sink is clogged with hair or other solid masses, you might be able to fish it out with an old, bent wire hanger. [substeps] Straighten out a wire clothes hanger as much as possible. 
Bend one end slightly to create a small hook capable of fitting into your sink drain. Slide the wire hanger down, hook-side first, into the drain.