<s>[INST] Since Jan 2014 my daughter s Breathing has gone down and her voice is almost gone. Her first test was at lung capacity was at 72%.Her Dr. thought she had Dysphonia Then decided to have Lung Biopsy on her lung s because the last Pulmonary test showed her lung Capacity went down to 52%. They say all test has come back Normal. Her Surgeon Said She had Inflamed and Congested lungs, but her Pulmonary Dr won t treat her because her test come back in normal range.I have a Thought She live s in an Environment with 7 dog s, 6 horse s on a Dirt road and her Mother doesn t keep a very clean environment, not dirty but for dust and dog hair there is no stoping it. very Dusty and dog hair everywhere,and not adding the dust from the road s. Can this be part of her problem. I personally could not believe the dust and crap in the house.I need an answer to find Help for My Daughter, My Daughter is 44 year s old and Tell s me she has told Her Doctor s about Her Environment that she s living in for Year s, I m at a loss, but It seem s today s Doctor s don t care about the Patient only the Insurance Money. Thank s for any Help You Can Give A Concerned Father [/INST] Thanks for your question on Chat Doctor. I can understand your situation and problem. Yes, you are right about dust and animal hair. Allergy to dust and animal fur is very common. So your daughter may have asthma (allergic) due to constant and prolonged exposure of dust and animal fur, which caused decrease in breathing capacity in her. Another possibility is Hypersensitivity Pneumonitis (HSP). It is also seen in chronic exposure of animal fur. And it is also giving low breathing capacity. So better to consult pulmonologist and get done1. HRCT thorax2. PUT (pulmonary function test)HRCT is needed to rule out HSP.PFT is needed to rule out asthma. </s>