Can cooling tea reduce internal heat?
Generally speaking, cooling tea can help reduce internal heat, but it should be consumed in moderation. The details are as follows:

Cooling tea is a common beverage whose main ingredients include traditional Chinese herbs such as chrysanthemum, honeysuckle, Prunella vulgaris, and licorice. These herbs possess properties that clear heat, detoxify the body, and dispel wind-heat. Therefore, cooling tea helps eliminate excess internal heat and alleviate symptoms caused by "heatiness," such as sore throat and mouth ulcers. It can also relieve symptoms like headaches due to wind-heat and gum bleeding. In summer, cooling tea can refresh the body, relieve heat, stimulate saliva production, and quench thirst; moderate consumption may help prevent heatstroke. Although cooling tea can reduce internal heat, it should be consumed in moderation to avoid harming the gastrointestinal tract.
Cooling tea has a relatively cold medicinal nature and should be avoided by individuals with a deficient-cold constitution, as it may cause abdominal pain or diarrhea. If symptoms of excessive internal heat are severe, or if drinking cooling tea does not produce noticeable improvement, it is recommended to consult a doctor and consider using prescribed heat-clearing medications such as Tianwang Buxin Dan, Niuhuang Qingfei Pian, or Yangyin Qingfei Wan.