My 10 year old daughter suffering from an aching throat since evening.she is also feeling tired and lethargic since afternoon.?

Maybe strep throat: Children can catch strep throat from other kids. It is a common illness. A doctor can easily check with a throat swab test which takes 5 minutes for a result. Sometimes, a doctor can tell if it is strep throat even without a throat swab. The treatment is antibiotics. If the symptoms are just part of a cold, then antibiotics are not needed. Rarely, some serious disease can show up as a sore throat.

Viral infection: She seems to have a viral infection which often causes sore throat. In case she develops fever, swollen gland, reddish-purple spots over soft palate or fine red rash on the chest, seek a medical attention.