Sir, I had malaria (P. vivax) in September. After completing the treatment, I was tested again, and the results showed that the malaria was negative and my RBC count was normal. However, I continued to experience significant dizziness and a sensation of internal body vibrations, similar to shivering. Around November, I also developed a persistent cough. I became concerned and consulted a doctor. A chest X-ray was done, and it came back normal. The doctor suspected sinusitis and prescribed medications including levocetirizine, antibiotics, and a nasal spray. I took them for about 15 days, and the cough improved somewhat but did not completely go away, so I eventually stopped the medications. Now it has been about 7–8 months, and I still produce mucus/phlegm regularly. I spit out mucus around 15–30 times a day. I often feel that the mucus is draining from my nose into my throat and then into my mouth. Yesterday, I noticed blood in my sputum/phlegm, including a small clot-like structure