A 50-year-old man with no significant past medical history presents for a follow-up. He notes that he has developed increased non-productive cough and shortness of breath over the past week. He has had a chronically progressive cough and shortness of breath upon exertion over the past year. His occupational history reveals coal mining for 25 years. He denies any smoking, alcohol consumption, travel history, or sick contacts. He also denies fever, chills, sore throat, otalgia, chest or abdominal pain, peripheral edema, rashes, or pruritus. A chest radiograph was performed. What treatment would be most beneficial?
1 Trexall
2 Oseltamivir
3 Amoxicillin-clavulanate
4 Prednisone
5. Acyclovir