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Treatment

Antibiotics to combat the streptococcal infection are the mainstay of treatment for scarlet fever. Prompt administration of appropriate antibiotics decreases the length of illness. Peeling of the outer layer of skin, however, will happen despite treatment. One of the main goals of treatment is to prevent the child from developing one of the suppurative or nonsuppurative complications, especially acute rheumatic fever. As long as antibiotics are started within nine days, it is very unlikely for the child to develop acute rheumatic fever. Antibiotic therapy has not been shown to prevent the development of post-streptococcal glomerulonephritis. Another important reason for prompt treatment with antibiotics is the ability to prevent transmission of the infection between children. An infected individual is most likely to pass on the infection to another person during the first two weeks. A child is no longer contagious (able to pass the infection to another child) after 24 hours of antibiotics.

The antibiotic of choice is Penicillin V which is taken by mouth. In countries without a liquid Penicillin V product, children unable to take tablets can be given amoxicillin which comes in a liquid form and is equally effective. Duration of treatment is 10 days. Benzathine penicillin G can be given as a one time intramuscular injection as another alternative if swallowing pills is not possible. If the person is allergic to the family of antibiotics which both penicillin and amoxicillin are a part of (beta-lactam antibiotics), a first generation cephalosporin is used. Cephalosporin antibiotics, however, can still cause adverse reactions in people whose allergic reaction to penicillin is a Type 1 Hypersensitivity reaction. In those cases it is appropriate to choose clindamycin or erythromycin instead. Tonsillectomy, although once a reasonable treatment for recurrent streptococcal pharyngitis, is not indicated, as a person can still be infected with group A streptococcus without their tonsils.