There is no most effective method for children with dry cough and no sputum, but generally you can target treatment and therapy according to the cause of your child’s illness, such as general treatment, medication, and so on. 1. General care: children with dry cough without phlegm need to pay attention to avoid cold, indoor air circulation and appropriate humidity and temperature, not too dry. Eat a light diet, do not eat cold, spicy and stimulating food, seafood and other allergic food should also be avoided. Drink plenty of water. 2. Medication: If the dry cough is caused by cough variant asthma, you can use glucocorticosteroids such as budesonide formoterol inhalation powder mist to treat it. Children may have other reasons for dry cough, it is recommended to go to the hospital in time for relevant examinations, clear cause of the targeted treatment.