Pharyngitis. Attaching the prescription!

Hi, I am diagnosed with pharyngitis by the doc nearby.It has been three days since consultation and medicine intake.But it is getting worse even after keeping all the parhej and drinking hot water.Yesterday I couldn't sleep all night due to continuous cough(khaansi) and also I was feeling fever.Then I got up at 4 in night to wear 2 extra sweater.But again khansi wasn't stopping.And it is not even release yellow cough(balgam).I didn't even eat anything from outside since last 2 months.And even when this was so minute I consulted my family doc so that it doesn't become major.Still it is showing worse symptoms day by day.Now I don't know whether to go to new doc or revisit him to tell him the scenario. He gave me an antibiotic, seradic-p and one more tablet and a cough syrup called widex.I am also attaching the prescription