Children with allergic cough take leukotriene modifiers such as montelukast; antihistamines such as cetirizine; inhaled glucocorticoids such as budesonide. Allergic cough is due to the child’s contact with allergens (such as pollen, dust mites, fish, shrimp, irritating gases, etc.) and caused by paroxysmal irritating dry cough, there may be a small amount of white foamy sputum, the application of antibiotics is ineffective. 1. Leukotriene modulators: such as montelukast, can selectively inhibit the activity of leukotriene peptides in airway smooth muscle, reduce vascular permeability, reduce bronchospasm, inhibit airway hyperreactivity, well tolerated, few side effects. 2. Antihistamines: such as cetirizine, loratadine, can reduce the release of histamine in the process of rapid onset of metamorphosis, to avoid capillary dilatation and increased permeability, smooth muscle spasm, secretion activity, etc., the clinical use of a wider range. 3. Glucocorticoid: inhaled glucocorticoid (such as budesonide) has a certain anti-inflammatory effect, the drug acts directly on the mucosa of the airway, local anti-inflammatory effect is strong, and the systemic adverse effects are less. When the airway resistance is high, intravenous methylprednisolone should be used. All of the above medications should be used under the guidance of a doctor, avoid self-medication.