Bring to a boil so that the ginger flavors get extracted into the water. Take from heat once you can see a rolling boil. If you have time, cover and leave to infuse.
Strain the hot infused ginger water and discard ginger pieces.
Pour lemon juice into the cup. Adjust quantity to your taste preference.
Add a black tea bag to it if you like (optional).
Add the desired quantity of honey.
Enjoy your tea when it's still hot for the best effect.