Antibiotic Selection for Recurrent Abscess After Doxycycline Failure

Primary Management Steps

The American College of Physicians and the Infectious Diseases Society of America recommend incision and drainage as the cornerstone of treatment for all abscesses, regardless of antibiotic therapy 2, 3, 4
Obtain cultures from the drained abscess to identify the causative pathogen and guide antibiotic selection, as recommended by the Infectious Diseases Society of America 1
Before initiating antibiotics, search for underlying causes perpetuating recurrence, such as pilonidal cyst, hidradenitis suppurativa, or retained foreign material, as suggested by the Clinical Infectious Diseases guidelines 3, 1

The Infectious Diseases Society of America recommends trimethoprim-sulfamethoxazole (TMP-SMX) as a first-line oral option for empiric MRSA coverage, with a dosage of 160-320/800-1600 mg (1-2 double-strength tablets) twice daily 2, 5
Clindamycin is also recommended as a first-line oral option for empiric MRSA coverage, with a dosage of 300-450 mg three times daily, if local resistance rates are <10% 2
The IDSA recommends considering alternative agents, such as minocycline, if the patient has failed previous treatment with doxycycline 2, 5

The standard duration of antibiotic therapy is 5-10 days, as recommended by the Clinical Infectious Diseases guidelines 2, 1
Treatment should be extended if the infection has not improved within this timeframe, as suggested by the Infectious Diseases Society of America 3, 1

Antibiotics should be used in addition to drainage if the patient has surrounding cellulitis or erythema extending >2 cm beyond the abscess margin, as recommended by the Infectious Diseases Society of America 1
Antibiotics should also be used if the patient has systemic signs of infection, such as fever, tachycardia, or hypotension, as recommended by the IDSA 1
Immunocompromised status, multiple abscesses, or rapid progression are also indications for antibiotic use, as suggested by the Clinical Infectious Diseases guidelines 1
Extremes of age and comorbidities, such as diabetes or HIV/AIDS, are also critical indications for antibiotic use, as recommended by the Infectious Diseases Society of America 2, 3

A 5-day decolonization regimen should be implemented after completing the acute antibiotic course, as recommended by the Infectious Diseases Society of America 1
The regimen should include intranasal mupirocin 2% ointment twice daily for 5 days, as suggested by the Clinical Infectious Diseases guidelines 3, 1
Daily chlorhexidine body washes and daily decontamination of personal items are also recommended, as suggested by the IDSA 3, 1

The IDSA recommends considering decolonization given the low risk and potential benefit in preventing recurrences, with a strength of evidence rated as moderate 1
A large randomized trial demonstrated that both clindamycin and TMP-SMX significantly improved cure rates compared to drainage alone, with a strength of evidence rated as high 2