Gardenia is bitter in taste and cold in nature, with the effect of removing fire and vexation, clearing heat and dampness (removing heat and dampness from the body), cooling blood and detoxifying (referring to the treatment of blood-heat and toxicity); Yin Chen is bitter and pungent in taste and slightly cold in nature, with the effect of clearing dampness and heat, and diuresis to relieve jaundice (clearing the evil qi of the biliary tract and eliminating jaundice). Jujube, sweet in taste and warm in nature, has the effects of tonifying the middle and benefiting the qi (treating qi deficiency by tonifying the spleen), nourishing the blood and tranquilizing the mind (stabilizing the mind and soothing the emotions by nourishing the blood). The combination of gardenia, yin chen and jujube has the effect of clearing dampness and heat, clearing the liver and brightening the eyes (clearing liver fire to promote the recovery of vision), and nourishing the blood and the liver. However, the active ingredient of drinking water is limited, generally cannot reach the therapeutic effect, the tea drink has no obvious effect on sore throat. Patients who feel unwell should go to the hospital in time to avoid delaying the best time for treatment.