What can i do if my bro got a fever and i wan know how to cure!?

Temid bath: Depending on the age of your brother, over the counter medications based on weight, ; tylenol (acetaminophen) or Motrin every 4- 6 hrs, will allow your brother to feel better, but a cool/ room temperature bath- soak can also assist with cooling the body down so that he is comfortable. Always check with his md prior starting either regiment. Replace fluids- water, gatorade, pedialyte can assist in the replacement.