To use ginger for skin whitening, start by grating fresh ginger to extract its juice. You can optionally mix it with honey for added moisture and lemon juice for brightening effects. Remember to perform a patch test on a small area of skin to check for any allergic reactions. Apply the mixture evenly on your face, avoiding the eye area, and gently massage it in. Leave the mask on for about 15-20 minutes. You may feel a slight tingling sensation, which is normal. Rinse thoroughly with lukewarm water and follow up with a gentle moisturizer to lock in moisture. If you plan to go outside, remember to apply sunscreen, as lemon juice can increase sensitivity to the sun.