Skin Abscess Healing Time

Expected Healing Time

The American College of Physicians recommends that properly drained skin abscesses typically heal in 7-14 days, remaining open throughout this period while healing by secondary intention 1, 2

Complete and adequate drainage is the most critical factor for successful healing, more important than the use of antibiotics, according to the World Journal of Emergency Surgery 3
Risk factors for recurrence, which can prolong the healing process, include inadequate drainage, loculations, horseshoe-shaped abscesses, and prolonged time from onset to incision 3

The Infectious Diseases Society of America recommends against routine packing of the abscess cavity after drainage, as it is painful, costly, and does not improve healing 1, 4
A Cochrane review found insufficient evidence to support the use of packing 3
Simply covering the surgical site with a dry dressing is usually the easiest and most effective treatment 1

The wound should be left open and allowed to heal by secondary intention, with regular dressing changes until the cavity is fully healed 2, 4, 3
Primary closure with sutures is not recommended for simple abscesses 1

The Centers for Disease Control and Prevention recommend that antibiotics are indicated in addition to drainage when there is: erythema or cellulitis extending >2-5 cm beyond the abscess margin, systemic signs of infection, or immunocompromised patients 1, 2, 5
Antibiotics are also recommended for patients with multiple or rapidly progressing abscesses 6

For recurrent abscesses with possible MRSA, the recommended treatment is trimethoprim-sulfamethoxazole 160-320/800-1600 mg (1-2 double-strength tablets) twice daily for 5-10 days, according to the Clinical Infectious Diseases journal 5, 6

Cultures should always be obtained from the drained abscess to identify the pathogen and guide antibiotic selection, as recommended by the Infectious Diseases Society of America 5, 6
Local underlying causes that perpetuate recurrence, such as pilonidal cysts, hidradenitis suppurativa, or foreign material, should be sought and addressed 5, 6
Recurrence rates after drainage can be as high as 44% without adequate treatment, highlighting the importance of proper wound care and follow-up 3
Aspiration with a needle is not effective (<10% success with MRSA) and is not recommended, according to the Clinical Infectious Diseases journal 1