What Causes Running Nose And Heat Sensations While On Roxid For Throat Infection?

Sir, I was having a crash voice so, i got checked n got to know that i have a throat infection and then doctor suggested me roxid 150 for 5 days one tablet day and one. night , and garggales with KuKa medicine in little warm water, now after completing my dose , I am having a running nose and I feel there is so much heat in my body . although there is no fever , no bodypain and even..no khansi. I just snizz so much . last night I dipped a cloth in water and placed on my nose I felt much much better. Do you think these are the side effects of antibiotic I had taken. Please suggest me something as my exams are going on and these are biggest distraction.