question: My husband has been staining his pillow case and upper top sheet with blood every night for a month ow. I have shown him the blood and done daily laundry of sheets. He has a chronic cough and uses Tussin CF almost two times a day. He is n meds for Parkinsons and Dementia and has Merkel Cell Cancer on his left temple two yeArs ago. Supposedly cured with radiation. Is it possible he has developed lung cancer?