Four-year-old girls always get up in the morning and cough for a while usually associated with cold air irritation, allergies, pharyngitis, etc., can be treated with anti-allergy drugs, alkaline gargle and other medications, respectively. 1. Cold air stimulation: just from the warmth of the blanket in the morning to the outside environment, may be due to cold air stimulation caused by coughing. This is a normal physiological phenomenon, as the child grows up will slowly get better, no need to worry. 2. Allergy: four-year-old girls always get up in the morning to cough a burst of allergic cough may also be due to allergies to certain things caused by allergic cough, generally away from the allergens after the symptoms can be improved. If the cough is serious, you can use loratadine syrup and other anti-allergy drugs for treatment. 3. pharyngitis: some children with pharyngitis may also have a cough in the morning, it is usually recommended to use medication according to the specific type of infection, such as amoxicillin. Medications need to be used under the guidance of a doctor, if the four-year-old girl always cough in the morning a serious situation, or has not been improved, should be timely to the hospital for treatment.