It can relieve redness and fever. Wash your face and bathe with green tea often, which can reduce the occurrence of skin diseases and make your skin shiny, smooth and soft. Apply gauze dipped in tea to the dark circles, 1-2 times, once a day for 20-30 minutes, which can eliminate dark circles. Washing hands and feet with tea residue can prevent chapping, eczema, itching and foot odor.