The first step in the treatment of an allergic cough is to identify the allergens or potentially allergic substances as far as possible and avoid re-exposure. Secondly, medication should be applied as prescribed by the doctor. 1. Cough suppressants: including codeine and dextromethorphan, etc. But note that codeine is contraindicated in children and has a certain degree of dependence, and dextromethorphan is contraindicated in breastfeeding and women in the third trimester of pregnancy, and in people with serious lung disease. 2. Glucocorticosteroids: including inhaled drugs such as inhaled budesonide, etc., can also be taken orally according to the condition of prednisone and other drugs, but the hormone allergy is prohibited, and pay attention to long-term use of complications such as infections, osteoporosis, and other adverse reactions. 3. Antihistamines: commonly used drugs such as loratadine and cetirizine are prohibited for those who are allergic to the drugs and may cause drowsiness, constipation, insomnia and other adverse reactions. 4. Leukotriene receptor blockers: such as montelukast sodium, pay attention to the drug allergy is prohibited, breastfeeding women need to be used with caution, in addition to pay attention to cause gastrointestinal reactions, headache, cough and other adverse reactions occur. 5. Bronchodilators: such as terbutaline, salbutamol, etc., can also be used for the above diseases, but note that allergy is prohibited, and may produce dizziness, palpitations, respiratory distress and other adverse reactions. It is recommended that patients go to the hospital in a timely manner, the above drugs need to be standardized and rationally applied under the guidance of professional physicians and pharmacists to avoid delays in the condition.