Should i take my daughter to the doctors or should i go to the er because of her sore throat. she love to sing but the throat pain keeps getting worse?

Not an emergency: A simple rest of the voice should help some. If you are concerned she needs specific treatment for an infection then schedule a visit with her regular doc within a day or so.There is no treatment that would stop the pain and allow her to sing in a few hours. It will take several days to improve regardless of when she is seen.

Not the ER: She does not in any way have a life threatening problem. She should be seen by her primary care physician.