My drain pipe has been clogged for a couple of weeks already. The chemical stuff that I bought from the shops is not working as my drain is still clogged. I found this recipe to clear pipes using stuff one can find in the kitchen. I am going to try it out tomorrow. If it still does not work, then the plumber has to be called.
Pour 1/2 cup baking soda and then 1/2 cup of vinegar. Cover up the drain during the crazy chemical reaction. Wait 15 mins and pour a pot of boiling water. It totally clears up the clogged drain.