Detoxify body toxins, antitussive phlegm, and rejuvenate lungs. Guihua oolong tea has preventive and therapeutic effects on bad mouth, unknown vision, urticaria, duodenal ulcer, cold stomach, and stomach ache. Guihua oolong tea also has effects of whitening the skin, detoxifying body toxins, cough suppressing phlegm, and invigorating lungs. Guihua oolong tea has ventilatory and gastric effects after drinking and is suitable for elderly people with relatively weak gastric function to drink.