Remove the drain cover

Pull out visible hair and debris by hand or with tweezers

Use a drain snake or zip tool to clear the clog

Pour boiling water slowly down the drain if the pipe material allows it

Flush with hot water after clearing the blockage

Use baking soda followed by vinegar, then rinse with hot water

Try a plunger with enough water to cover the drain opening

Clean the drain stopper and trap if accessible

Repeat the snaking process if the clog remains

Call a plumber if the drain is still blocked