What do i do to get rid of a fever quickly?

Take tylenol (acetaminophen): Unless you have a specific infection than tylenol (acetaminophen) plus a cool bath should lower your fever fast. If that does not work than you need to see your primary dr. To do blood work. We need to find out if your fever is caused by an allergic reaction or an infection so that it can be treated properly. It may be a serious infection. Don't ever ignore signs of infection because it rarely resolves on its own.