I am not a doctor... but as Amit has mentioned, buy DayQuil( this wont make u drowsy) or Nyquil ( this is to be taken only at night as it makes drowsy)... I think u need to take it every 4 hours...

you have tounsil ....so gargle your neck with salt water... hope this will help...

if there was no tounsil and you had dry cough, then there was something to worry about...but u don't need to...

Take care...