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These drugs are available for purchase over the counter and effectively reduce fevers temporarily. They can help both children and adults feel more comfortable as their bodies heal.  Consult a doctor or pharmacist before administering (child- or baby- formulated) medication to any child under the age of two, and never give ibuprofen to a baby under six months of age.  Do not take more than the recommended dosage. Pay special attention to the dosage you give to children. Don't place medicine bottles within reach of children, since ingestion of more than the recommended dosage can be dangerous. Take acetaminophen every 4 to 6 hours, but do not exceed the recommended dosage on the package.  Take ibuprofen every 6 to 8 hours, but do not exceed the recommended dosage on the package. Don't give children more than one over-the-counter medicine at the same time for treatment of other symptoms. If you give your child a dose of acetaminophen or ibuprofen, do not also give them cough medicine or any other type of other medicine without consulting your doctor first. Certain medicines interact with each other in ways that can harm your child's health. For infants over 6 months, children, and adults, alternating between acetaminophen and ibuprofen is safe. Usual dosages are acetaminophen every 4-6 hours and ibuprofen every 6-8 hours, depending on the dose. Aspirin is an effective fever reducer for adults, as long as you take only the recommended dosage. Never give adult aspirin to children, since it can cause Reye's syndrome, a potentially fatal disorder.
Take acetaminophen or ibuprofen. Avoid combining medications for children. Take aspirin only if you are over 18.