<s>[INST] my husband has been using an apnea machine for a few years now...just recently within the last 3 weeks he has acquired a cough, chills, sweats, slight fever and has noticed blood in his phlegm....we went to the clinic and the doctor sent him for a chest x ray saying it is probably bronchitis....he thinks that the apnea machine might have something to do with this....he is a smoker...he smokes 3 packs a week... [/INST] Hi. I can understand your concern. He will need a chest x ray to evaluate if its a lung infection and may require treatment for the same. Don't worry, he will be alright. Hope I have solved your query. Wish you good health. Thanks. </s>