Sore throat with yellow phlegm but no cough is considered to be caused by acute pharyngitis, acute tonsillitis or acute purulent tonsillitis, which are lesions of the upper respiratory tract. In this case, Chinese medicine can identify wind-heat and phlegm, so you can use Chinese medicine to clear heat and phlegm, such as Pu Di Lan Oral Liquid, Blue Scutellaria Oral Liquid and Qing Kai Ling Oral Liquid. If yellow phlegm is sticky and difficult to cough up, you can combine oral phlegm dissolvers, such as Ambroxol Oral Liquid, Acetylcysteine Granules, and Carboxymethylstilbestrol Tablets to promote phlegm discharge, while if the sore throat is accompanied by bacterial infection, you can take oral cephalosporin or macrolide antibiotics for anti-infection treatment.