thanks for your question i completely understand your question in my opinion your husband should continue with the treatment. in case if your husband was a smoker previously he needs some inhaled medications like fluticasone and formoterol ( inhaler) . you can disscuss this with your physician further workup which needs to be done is a chest xray and spirometry to know the stage of bronchitis once stable , and then he can be prescribed the medications acute bronchitis with lower resp tract infection will need utmost care if there is breathlessness and yellow expectoration, then he ll be needing a hospital care thanks feel free to ask more questions may god bless your family with good health