Toothache remedy: clove oil

Cloves are a traditional remedy for numbing nerves; the primary chemical compound of this spice is eugenol, a natural anaesthetic. Research has shown that, used topically, clove oil can be as effective against tooth pain as benzocaine. Put two drops of clove oil on a cotton ball and place it against the tooth itself until the pain recedes. In a pinch, use a bit of powdered clove or place a whole clove on the tooth. Chew the whole clove a little to release its oil and keep it in place up to half an hour or until the pain subsides.
Toothache remedy: cayenne paste

The main chemical component of cayenne – capsaicin – has been found to alter some of the mechanisms involved in pain. Mix powdered cayenne with enough water to make a paste. Roll a small ball of cotton into enough paste to saturate it, then place it on your tooth while avoiding your gums and tongue. Leave it until the pain fades – or as long as you can stand it (the concoction is likely to burn).
Toothache remedy: swish some salt water

A teaspoon of salt dissolved in a cup of boiling water makes an effective mouthwash, which will clean away irritating debris and help reduce swelling. Swish it around for about 30 seconds before spitting it out. Saltwater cleanses the area around the tooth and draws out some of the fluid that causes swelling, according to Professor Thomas Salinas. Repeat this treatment as often as needed. “A hot rinse can also help consolidate the infection until you get to your dentist,” says Dr Salinas.