The answer to 'how to unclog shower' is to first try using a plunger or a drain snake to remove the clog. If that doesn't work, you can try using a chemical drain cleaner, but be sure to follow the instructions carefully. If the clog persists, you may need to disassemble the drain or call a professional plumber.
Unclogging a shower drain is a common household task, but it's important to take safety precautions. Wear gloves and eye protection, and work in a well-ventilated area if using chemical drain cleaners. It's also a good idea to have a bucket or towel on hand to catch any water or debris that comes up.