Before you call the plumber, follow these tips to clean a clogged, smelly shower drain.
Understand that if you can’t get rid of shower drain smells on your own, the water doesn’t drain—or worse, is backing up, it could be an issue with your sewer or septic tank. This is likely not a DIY fix, so it’s best to hire professional help. Just make sure you are using a plumber who is both licensed and insured.
BTW, have you cleaned your shower head lately? If not, go HERE.