Treatment of Scarlatina in Children

First-Line Antibiotic Treatment

The American Academy of Pediatrics recommends oral amoxicillin at 50-75 mg/kg/day divided into 2 doses (or penicillin V at 50-75 mg/kg/day in 3-4 doses) for 10 days as the definitive first-line treatment for scarlatina in children, with oral clindamycin 40 mg/kg/day in 3 doses reserved for penicillin-allergic patients 1

For children with documented penicillin allergy, the Infectious Diseases Society of America recommends oral clindamycin 40 mg/kg/day divided into 3 doses for 10 days as the preferred alternative 1, 2
The American Academy of Pediatrics suggests that non-immediate hypersensitivity (rash) patients may be treated with first-generation cephalosporins such as cephalexin 75-100 mg/kg/day in 3-4 doses under supervision 1
For immediate Type I hypersensitivity (anaphylaxis) patients, clindamycin is mandatory, and cephalosporins are contraindicated 1, 2

The Infectious Diseases Society of America recommends intravenous penicillin G 100,000-250,000 U/kg/day every 4-6 hours or ampicillin 200 mg/kg/day every 6 hours for severe scarlatina requiring hospitalization 1
For penicillin-allergic patients, the American Academy of Pediatrics suggests clindamycin 40 mg/kg/day every 6-8 hours IV as an alternative 1, 2

The American Academy of Pediatrics warns against underdosing amoxicillin, using 40-45 mg/kg/day instead of the recommended 50-75 mg/kg/day, which can lead to treatment failure 1