In a patient with a burn wound on the hand showing redness, crusting, and leaking yellow pus, who is allergic to macrolide antibiotics, what is the most appropriate antibiotic treatment?

In a patient with a burn wound on the hand showing redness, crusting, and leaking yellow pus, who is allergic to macrolide antibiotics, what is the most appropriate antibiotic treatment?

• A. Flucloxacillin
• B. Doxycycline
• C. Clarithromycin
• D. Amoxicillin

Answer: (B)

Infected burn wounds need an antibiotic that effectively covers the common skin pathogens, especially Staphylococcus aureus, and is safe given the patient’s allergy. Clarithromycin is a macrolide, so it must be avoided because of the allergy. Doxycycline is a good choice here because it provides reliable activity against Staphylococcus aureus, including many strains encountered in skin and soft tissue infections, and it penetrates well into tissues. This makes it a suitable option when a macrolide is off limits. Flucloxacillin targets MSSA well but may be ineffective if MRSA is involved, which is a real concern in burn wound infections. Amoxicillin has limited usefulness against Staphylococcus aureus due to beta-lactamase enzymes produced by these bacteria. So, given the allergy and the need to cover potential MRSA in a burn wound, doxycycline stands out as the most appropriate choice.

Infected burn wounds need an antibiotic that effectively covers the common skin pathogens, especially Staphylococcus aureus, and is safe given the patient’s allergy. Clarithromycin is a macrolide, so it must be avoided because of the allergy. Doxycycline is a good choice here because it provides reliable activity against Staphylococcus aureus, including many strains encountered in skin and soft tissue infections, and it penetrates well into tissues. This makes it a suitable option when a macrolide is off limits.

Flucloxacillin targets MSSA well but may be ineffective if MRSA is involved, which is a real concern in burn wound infections. Amoxicillin has limited usefulness against Staphylococcus aureus due to beta-lactamase enzymes produced by these bacteria. So, given the allergy and the need to cover potential MRSA in a burn wound, doxycycline stands out as the most appropriate choice.