A 60-year-old male presen...

A 60-year-old male patient presents with complaints of breathlessness, cough with phlegm, headache, and palpitations over the last two days. The patient has a history of hypertension and type 2 diabetes for 20 years. The patient also has a history of alcohol consumption for 40 years. His oxygen saturation is at 70%, blood pressure is elevated at 180/110 mmHg, heart rate is 118 beats per minute, and respiratory rate is 26 breaths per minute. The patient is afebrile. He underwent a Chest Xray as shown in the image. Kindly provide an appropriate diagnosis and treatment.