Mother (60) breathing difficult. x-ray clear.allergy and shortness in breath in lungs since a year & dont know why. uses symbicort 320 but of no use. dr advices to use omron u100nebulizer. what to do as well? her condition worsens daily.help please?

I strongly recommend that your mother be evaluated for cardiac as well as pulmonary.pathology. I assume she's not significantly anemic. I would start with a workup by a pulmonologist so that all appropriate testing will be carried out. If no pulmonary cause is found, consult a cardiologist. If her breathing difficulties are at rest but not with exertion, anxiety could be a cause of her distress