A child’s persistent cough is mainly related to the poor resistance of the affected child, and once the cough is developed, it can easily recur and remain untreated for a long time. If your child has a bad cough, he or she should seek medical diagnosis and treatment for the type of cough under the correct guidance of the doctor. If it is an allergic cough, nebulization can be performed; if it is a mycoplasma infection, azithromycin can be administered. The specific methods for treating a child with a bad cough are as follows: 1. Anti-inflammatory treatment: As children have a bad cough, anti-inflammatory treatment is the main treatment method, and antibiotics are generally used internally for treatment; 2. Anti-allergic treatment: For a child with a bad cough, it may be related to the child’s own allergic constitution or allergic reaction, and anti-allergic treatment is needed, and oral hormone therapy should be administered under the guidance of a doctor if necessary; 3. Local Treatment: Ultrasonic nebulization inhalation can be used. The nebulized drugs are mainly anti-inflammatory drugs, which are diluted with saline or distilled water and then inhaled by ultrasonic nebulization, and the treatment time is usually 3-5 days. The common herbal medicines include maidenhair, astragalus, dahurica, thorax, etc.