Hi thanks for using healthcaremagic Your chest problem is due to longstanding respiratory problems...Recurrent bronchitis is the problem.. Resoiratory Function has to be assessed. If there is obstructive picture,you can try bronchodilators.(drugs which improve the expansion of lung) Both oral and inhalational can be used.. Doses can be titrated and slowly fix to only inhalational.. When we use inhalational bronchodilators,it will be better if you use a combination of steroid and bronchodilator. Steroids can decrease the exacerbations of bronchitis... Anti-allergic treatment is good option... There are some medications called mast cell stabilizers can also be used... A pulmonologist can help you out.... Thank you....