I am alergic to dust. I had breathing problems since Nov.2011 after replacing a old cotton bed and did some wall painting. I was under treatment with a chest specialist for alergy and chest infection, and the breathing problem reduced but due to over dose of tablets although i do not have much of a breathing problem I have developed internal fever which is less than 100 F which comes down with paracetamol but is persisting for the past two weeks. I have visited another doctor who has given me antibiotics which I have taken for the past 5 days with no positive results. He says I have to do a PFT and cardiac test. What should I do? Please help. I feel very exhausted with to much of medication.