I have been treated for a sinus infection and when I went in to see the Dr. I had told them that I was exposed to petroleum distillates at work and had been for like 3 years on the daily. I was building fuel pumps for utility vehicles at work. A co worker informed me that she had done the job previously to me and had only done the job for 3 months and had to have a hole repaired in her sinuses. I had no idea that I was in harms way. I have been told by my doctor that I was having allergy problems and it happens to older adults. Environmental allergies. I constantly clear my throat from the time I get up and spit phlegm out and today I tried all day to clear my nose...It felt like something hanging in there. I finally got a large gob of phlegm out. I was a dark green and not clear at all. How do I get my doctor to listen to me. I have provided him a msds from work. All he did was chuckle. I know I'm not a doctor but what happens if I go untreated? I'm no longer doing this work, and haven't for almost 2 years. Thanks for listening.