Help.? i have a clogged bathroom drain,it's clogged really bad i don't know...

i have a clogged bathroom drain,it's clogged really bad i don't know what to use on it,my tub have been taking about 7 hours to completely drain after someone bathe.i already tried some stuff called plubmers plunger,it didn't touch it.any ideas?
Shower hose to wall - anything needed contained...
Answers:    What you will own to do is clean out the trap. This is minor plumbing, You have an access surrounded by the wall? Thru that you can reach the trap. Remove it, clean it. and reinstall it. There are simply 2 nuts to turn. The plumber will only charge you, mmm $80? If you need diagrams and visuals, turn to Home Depot. Talk to someone in the plumbing dept. Who knows, he might be a hunk.
Does anyone own any accepted wisdom on making...
No you shouldn't use products close to that they weaken the pipes in your home. Our licensed plumber swears by a gallon of bleach. You might own a hairs plugging the drain and the bleach will eat away at them and verbs up your drain. Also you might want to open up the over flow and pull out anything from contained by there as well. Best of luck!
RE. Sewage outlet pipe from a toilet?
Yea I own an idea... Call a plumber.