We enrolled outpatients with uncomplicated skin infections who had cellulitis, abscesses
larger than 5 cm in diameter (smaller for younger children), or both. Patients
were enrolled at four study sites. All abscesses underwent incision and drainage.
Patients were randomly assigned in a 1:1 ratio to receive either clindamycin or
trimethoprim–sulfamethoxazole (TMP-SMX) for 10 days. Patients and investigators
were unaware of the treatment assignments and microbiologic test results. The primary
outcome was clinical cure 7 to 10 days after the end of treatment.