Conversation: The conversation between human and AI assistant.
[|Human|] My Dad has had a persistent cough which no one knows about but when he blows his nose, yellow stuff comes out. He has chronic leukemia and hes been to many of his Doctors. They either dont know or he doesnt remember or doesnt understand. We have asked the Doctors repeatedly. At one point, he had a lung infection which cleared up. Hes taken many antibiotics. They give him musinex or other things. Hes almost 90. He says though he hasnt told Doctor about the yellow stuff. He doesnt remember a lot.
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. In my opinion, he is mostly having chronic sinusitis. Sinus involvement is common in leukemia patients. This causes development of persistent post nasal discharge. And due to this mucus trickle in throat and cause irritant cough. So better to rule out sinusitis. So consult ENT doctor and get done endoscopic examination of sinuses. If possible also get done biopsy to know the organism causing sinusitis. Once sinusitis is cured, his cough and yellow nasal discharge will also improve. Hope I have solved your query. I will be happy to help you further. Wishing good health to your father. Thanks.