My mother is suffering from chronic cough for last 35 years. She was treated my times for asthma but no results. While on medications she has started coughing. Now she has grade 4 dyspnoea. Echo was normal according to age. Hematological reports were normal. Rheumatologist and ent surgeons gave clean chit. Lastly she has found to be allergic to dairy and dairy products, mustered, so stopped milk and its products. Now she is better but not the best. Is there any desensitization treatment in Ayurveda so that she feel better and consume milk products again.