Tonsils and fever. Test. please suggest.

Dear sir/ mam On Friday my daughter was suffering from cold and fever we went to dr. He said she is having tonsils on right side. They prescribed medicines that she was having fever temperature 101 & 102.8. I give her ibugesic. Her went down. Next day she woke up fine. But again she having fever her temperature is 100.2 I give her paravib syrup has prescribed dr. She is having cold and cough also i am not sure is this fever temperature is normal or not. Or do we have to go for test. Because dr. Said if she has fever or breathing problem or cold and coughing and we have to go for covid test. But she is only having little cold cough and fever temperature 100. Is this because of weather change or should I go for test. Please suggest.