my doctor says i am suffering from nasobronchial allergy , its been one & half year i am suffering from. i used to cough hard once in every three days. now its started affecting my professional & professional life as well. i tried all kind of medicines ( Homeopathy , ayurveda , general medicines ) but non of them worked. i can not able to figure out the actual allergen (pollution, dust, Air conditioner). what should i do ? does nasobronchial allergy be treated ?