Bromhexine Hydrochloride is a western medicine with no claims of efficacy, and works to treat sticky phlegm that is not easily coughed up due to chronic bronchitis and asthma. Bromhexine hydrochloride is an expectorant used for the symptoms of chronic bronchitis, community-acquired pneumonia, asthma, lobar pneumonia and other causes of mucous phlegm that is not easy to cough up. It can reduce and break mucopolysaccharide fibers in sputum, making sputum less viscous and easy to cough up, followed by its ability to reduce the salivary acid content of sputum and decrease the viscosity of sputum. Adverse reactions to bromhexine hydrochloride include maculopapular rash, urticaria, erythematous rash, excessive sweating, nausea, vomiting, stomach upset, abdominal pain, diarrhea, abdominal discomfort, bloating, and dry mouth. The contraindications of bromhexine hydrochloride are caution for allergic individuals, and the use of this product is prohibited when its properties have changed. This product is irritating to the mucosa of the gastrointestinal tract, gastritis or gastric ulcer patients should be used with caution; patients with hepatic insufficiency should be used under the guidance of a physician. The above drugs need to be used under the guidance of a doctor, the specific treatment program, need to be under the guidance of a doctor, in order to better treat the disease.