For the past week, I’ve had mild sore throat One

Patient: For the past week, I’ve had mild sore throat. One day, I woke up with a swollen lymph node at my neck so I consulted a doctor. He prescribed antibiotics( Co-Amixoclav) to be taken for seven days, twice a day. But after taking my first pill, I went out and ate something cold and very sweet and my condition worsened. What should I do? The swollen lymph nodes increased. And I now have a stiff neck and the urge to puke and my throat hurts.

Doctor: