For coughs caused by lung heat, the following medications can be taken to make the cough symptoms improve as soon as possible: 1. You can take Pediatric Lung Heat Cough and Asthma Oral Liquid, which is a good treatment for coughs and phlegm caused by lung heat. 2. 3. Taking diarrhea and white syrup can help to clear lung heat and relieve coughing caused by lung heat. 4. Other medications that have the effect of clearing lung heat can also be taken, such as snake bile and Sichuan shellfish liquid. In addition to taking medication, children should also eat more fruits and vegetables that have the effect of clearing lung heat, such as pears and white radishes, to help the cough get better.