To unclog a bathroom sink drain, use a plunger or a plumbing snake to address the blockage. If the clog persists, use a mixture of baking soda and vinegar followed by hot water. For severe clogs, removing the trap or calling a plumber might be necessary.

Unclogging a bathroom sink drain involves using a plunger, snake, or baking soda and vinegar. Severe clogs may need professional assistance.