Conversation: The conversation between human and AI assistant.
[|Human|] I am having frequent chills, no fever. A few months ago, I had a CT because I had a concussion. Results indicated I had a chronic upper sinus congestion. Have had a lot of thick mucus drainage at back of throat, if I can cough it out, it is bloody and greenish looking. cskaercher
[|AI|]  Thanks for your question on Chat Doctor. I can understand your situation and problem. In my opinion you should consult ENT doctor and get done nasal endoscopic examination to rule out chronic sinusitis. Because greenish, blood mixed mucus suggest possibility of 1. Fungal sinusitis 2. Nasal polyps 3. Early cancer 4. Chronic bacterial sinusitis. So nasal endoscopy is must for the diagnosis. You should also get done culture of nasal secretions for the diagnosis of causative organism. So consult ENT doctor and first diagnose yourself and then start appropriate treatment steam inhalation 5-6 times a day.