Before attempting to clean your shower drain, it's essential to identify the root cause of the issue. Check if there are any visible blockages, such as hair or soap scum buildup, and clear them out manually with a drain snake or plumbing gloves. For tougher clogs, you can use a combination of baking soda and vinegar to create a natural cleaning solution. Pour 1 cup of baking soda down the drain, followed by 1 cup of vinegar, and let the mixture sit for 2-3 hours. Then, pour hot water down the drain to rinse and clear out any remaining debris.