Germany imports more bronchitis medicines, the common ones are myrtle oil, compound ipratropium bromide solution for inhalation and ipratropium bromide solution for inhalation. 1. Myrtle oil: the main ingredient is the standardized extract of the leaves of the myrtle family, which can not only treat bronchitis, but also acute and chronic sinusitis, bronchial dilatation, chronic obstructive pulmonary disease, fungal infections of the lungs, tuberculosis, silicosis and other diseases. Some people may have adverse reactions such as skin rash and facial swelling, which should be taken directly by mouth, and people who are allergic to this medicine are prohibited from taking it. 2. Inhalation of compound ipratropium bromide solution: for patients who need a variety of bronchodilators combined application, mainly used for the treatment of reversible bronchospasm associated with airway obstructive diseases. Common adverse reactions include headache, dizziness, and anxiety. It is contraindicated in those who are allergic to any other ingredients in the product, and also in those who are allergic to atropine or its derivatives, and should be used with caution in pregnant or lactating women. 3. Inhalation ipratropium bromide solution: the main ingredient is ipratropium bromide, which belongs to the bronchodilator, and can be used in combination with inhaled beta agonists for the treatment of acute bronchospasm caused by chronic obstructive pulmonary diseases, including chronic bronchitis and asthma. Adverse effects are currently unknown and are contraindicated in those who have had an allergic reaction to atropine or its derivatives or any other component of the product. It is recommended that patients should use the drug under the guidance of a doctor and should not apply it blindly to avoid delays.