The P trap is a u shaped pipe located at the back of your toilet and is fitted to all sinks and drains. If you don’t use any of these regularly, the water in the p trap can evaporate, leaving your bathroom with that foul odor.
Hopefully, everyone in your family showers regularly.After a while, pieces of dead skin, soap, gels, hair and all sorts of stuff can clog your shower drain.
First, pop off the shower drain cover and pull out any debris that is accessible.If it looks significant, you can use a plumbers snake or auger to remove the gunk.