The cough, cough and white tongue coating may be caused by wind-heat cold and lung fire. 1. You can take Shuanghuanglian Oral Liquid, Pediatric Chai Gui Antipyretic Granules, Pediatric Phlegm Cough Syrup, Lung Power Cough Compound, Compound Jin Yinhua Granules, etc. 2. You can rinse your mouth with salt water to keep your mouth clean. 3. Clear heat. Usually try not to eat too greasy, spicy and other badly digested stimulating food, eat more fresh fruits and vegetables. Helps the recovery of the disease.