As has been mentioned already, Scarlatina is caused by strep bacteria. The bacteria can spread through the body fluid from the mouth and nose of the infected individual.
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However, Scarlatina can be cured completely and all such complications can be avoided with prompt treatment.
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As the child cannot swallow food, you can give him some soft foods. Keep the child in normal room temperature and you can make them wear loose cotton clothing.
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In extremely rare cases, meningitis, endocarditis and toxic shock syndrome may occur. Speak to the health care provider for more details and treatment options in case a child develops scarlatina.