Thanks for putting up your problem at Healthcare Magic!
I can advise you about your problem but can not write a prescription online!
You seem to have a viral upper respiratory tract
Tratment is rest, hydration, decongestants like Wikryl/Sinarest
under supervision and defined doses.
and saline gargles thrice a day.
Youcan continue your antibiotic for three more days along with the treatment advised.
I hope the advise would be helpful for you.