No home remedies work for such severe tooth pain,only u can get today's good night sleep with tab.ketorol DT (s-o-s) Warm water gargle And some counter irritants like  clove oil.

kindly take an x-ray done ...and contact...maybe it can be saved by root canal treatment...

No medications, whether antibiotics or painkillers, can cure any dental problem and and objective treatment by the dentist is always required for permanent relief. So that should also make it very clear that the home remedies are absolutely useless in such cases, because all they can do is provide temporary symptomatic relief and cause the ongoing damage to aggravate further. The only prudent step is to make a visit to a dentist as soon as possible so that a proper clinical checkup can rule out the exact cause of your pain and the right treatment options can be explained to you. Regards.