Clear a clogged shower drain by removing the drain cover and extracting hair and debris with needle-nose pliers or a zip-it tool. Pour boiling water to flush loose buildup. Use baking soda and vinegar for minor clogs. A drain snake reaches deeper blockages 2 to 5 feet into the pipe. Chemical cleaners are a last resort as they damage pipes over time. Install a mesh drain screen to catch hair and prevent future clogs from forming.