Hello, according to what you said, even if there is pain and phlegm, there is the possibility of upper respiratory tract or bronchial infection.

Guiding opinions:

Hello, in this case, you can use Niuhuang Jiedu Pill, fresh bamboo juice or loquat cream to relieve cough and resolve phlegm. Pay attention to drink plenty of boiled water, and you can also use amoxicillin. I hope to recover soon.