Green tea can be used to relieve toothache to some extent. You can make a strong cup of green tea. Let the tea bag or loose tea steep in hot water for a longer time than usual to make the tea more concentrated.
After that, you can take the warm tea and swish it around in your mouth for a few minutes like a mouthwash. The tannins in the tea have anti - inflammatory and antibacterial properties. They can help reduce the inflammation around the tooth and gums and also inhibit the growth of some bacteria that may cause dental pain.
However, it's important to note that using tea is only a temporary relief method. If the toothache persists or is severe, it's necessary to see a dentist for a proper diagnosis and treatment.