What causes sore throat?  
People who have a sore throat caused by a virus usually have other symptoms, too. These can include: 
A runny nose 
A stuffed-up chest 
Itchy or red eyes 
Cough 
A raspy (hoarse) voice 
Pain in the roof of the mouth  
 
People who have strep throat DO NOT usually have a cough, runny nose, or itchy or red eyes.
Does my child need antibiotics?  
What can I do to help my child feel better?  
Soothing foods and drinks  – Give your child things that are easy to swallow, like tea or soup, or popsicles to suck on. Your child might not feel like eating or drinking, but it’s important that he or she gets enough liquids. Offer different warm and cold drinks for your child to try.Medicines  – Acetaminophen (sample brand name: Tylenol®) or ibuprofen (over 6 months of age) (sample brand names: Advil®, Motrin®) can help with throat pain. The correct dose depends on your child’s weight, so ask your child’s doctor how much to give.Other treatments  – For children who are older than 3 to 4 years, sucking on hard candies or a lollipop might help. For children older than 6 to 8 years, gargling with salt water might help. 
When can my child go back to school? 
How can I keep my child from getting a sore throat again?  
Try to teach your child about other ways to avoid spreading germs, such as not touching his or her face after being around a sick person.