What should be her treatment?

Depends on what the: What the doctor finds on exam will guide tests and treatment. Throat pain can be from a strep throat infection (antibiotics are needed), a cold or influenza (antibiotics usually not used), or from some other cause such as allergies, irritants, or stomach acid. Usually, one sees the doctor if the sore throat is bothersome, recurrent, or doesn't go away quickly (mainly to check for strep throat).