Review Question - QID 213198

A 72-year-old man is seen in the hospital for a sacral rash. The patient has been hospitalized for the past 3 weeks for a heart failure exacerbation. When the nurse went to bathe him this morning, she noticed a red rash over his sacrum. The patient reports mild discomfort and denies pruritus. The patient has chronic kidney disease, urinary incontinence, ischemic cardiomyopathy, gout, and poor mobility. His current medications include aspirin, furosemide, metoprolol, lisinopril, spironolactone, and prednisone that was started for a recent gout flare. The patient’s temperature is 97°F (37.2°C), blood pressure is 110/62 mmHg, pulse is 68/min, and respirations are 13/min with an oxygen saturation of 98% on room air. On physical examination, there is a 4 cm x 6 cm patch of non-blanchable erythema over the patient’s sacrum that is mildly tender to palpation. Labs are obtained, as shown below:

Leukocyte count: 10,000/mm^3 with normal differential
Hemoglobin: 15.2 g/dL
Platelet count: 400,000/mm^3

Serum:
Na: 138 mEq/L
K+: 4.3 mEq/L
Cl-: 104 mEq/L
HCO3-: 25 mEq/L
BUN: 26 mg/dL
Creatinine: 1.5 mg/dL
Glucose: 185 mg/dL

A hemoglobin A1c is pending. Which of the following is the best management for the patient’s most likely diagnosis?