There are two reasons why a patient may develop a cough when smelling smoke: first, the patient is allergic and develops an allergic cough when smelling smoke. Second, patients with bronchial asthma have an acute attack of asthma caused by the stimulation of the bronchial mucosa after smelling smoke. If it is an allergic cough. First, get out of the environment where there is smoke. Secondly, take anti-allergy drugs for treatment. Commonly used drugs include loratadine, paracetamol, cetirizine hydrochloride, etc. The efficacy is very good. If the symptoms of allergic cough appear when smelling smoke, you can take oral loratadine or paracetamol to relieve the symptoms of cough. If a patient with bronchial asthma develops a cough at the smell of smoke, he or she needs to be treated with nebulized inhalation medication. For adult patients, the drug Symbicort can be used for nebulizer treatment, while for infants and children, budesonide or terbutaline can be used for nebulizer inhalation treatment.