<s>[INST] Hi, may I answer your health queries right now ?  Please type your query here...my husband had a triple heart by-pass 3 weeks ago; he also has emphysema; for the last week he has been coughing up clear phlegm constantly; this is causing him to have no sleep and low energy; he has been given antibiotics but these are not resolving the problem [/INST] Thanks for your question on Chat Doctor. I can understand your concern. Coughing with clear phlegm in emphysema patients is more likely due to mild worsening of emphysema. So he should start inhaled bronchodilator (formoterol or albuterol) and inhaled corticosteroid (ICS) (budesonide or fluticasone). Oral N acetyl cysteine (NAC) is also beneficial. Don't worry, he will be alright with all these. Hope I have solved your query. I will be happy to help you further. Wishing good health to your husband. Thanks. </s>