Reduces fever, relieves minor aches and pains due to the common cold, flu, sore throat, headaches and toothaches. When your child has a high fever, you know what it's like to wait it out. Children's Advil Suspension temporarily relieves fever fast—even faster than Children's Tylenol. 1It lasts longer, too—up to eight hours. And Children's Advil also relieves aches and pains.