When this happens, tonsils get sore, red, and swollen. It may be hard to swallow and kids may have a fever. Doctors do tests to find out if a virus or bacteria caused the infection.
For bacterial infection, the doctor can give antibiotics to get rid of it. When a virus is the problem, kids just have to take it easy until their tonsils gets better.
Kids who get tonsillitis a lot, or who don't get better after antibiotics, might need surgery to remove the tonsils.